Gm engine weights

Discussion in 'Chevy' started by Streffpilot, Aug 16, 2012.

Help Support HomeBuiltAirplanes Forum by donating:

  1. Aug 16, 2012 #1

    Streffpilot

    Streffpilot

    Streffpilot

    Well-Known Member

    Joined:
    Jul 13, 2011
    Messages:
    318
    Likes Received:
    170
    Location:
    Mukwonago, WI
    Can anyone provide me with the weight of a 4.3l v6 and a ls1 and a sbc 350??? Just the engine no extras.
     
  2. Aug 17, 2012 #2

    PaulS

    PaulS

    PaulS

    Well-Known Member

    Joined:
    Sep 6, 2011
    Messages:
    297
    Likes Received:
    12
    Location:
    Seattle, Wa., USA
    Cast Iron SBC weighs in at 620 lbs. without starter or alternator.
    I haven't worked with the others so someone else will have to add that info.
    Paul
     
  3. Aug 18, 2012 #3

    hogheadv2

    hogheadv2

    hogheadv2

    Well-Known Member

    Joined:
    Feb 8, 2010
    Messages:
    127
    Likes Received:
    2
    Location:
    Booger finger of Michigan
    Last edited: Aug 18, 2012
  4. Aug 20, 2012 #4

    RJW

    RJW

    RJW

    Well-Known Member

    Joined:
    Feb 9, 2011
    Messages:
    703
    Likes Received:
    201
    Location:
    Wisconsin and Kansas
    A good SBC with as many cheap aluminum parts as possible will weigh running about 425 pounds. An LS motor will weigh about 370 pounds. Don’t know what a 90 degree V6 will weigh since they are a poor choice for any application. I have no interest in them and hope that others see the same. Of course the best thing is to start whatever motor you are interested in and then weigh it. Hope this helps.

    DSC_0353.jpg


    Rob
     
  5. Aug 27, 2012 #5
    Thats a good comparative source of information. Something to consider here is that apparently most of the weights for the LS engines include exhaust manifolds while many of the smallblock crate engines don't. I weighed an LS1 with manifolds and pwr steering pump but no flywheel and it was right at 400 lbs. The thing to consider here is that cast iron will always weigh more than aluminum and you are usually looking at about 75 lbs just for the block. How much power does it take to make 75 additional pounds fly, and how much will it affect your stall speed....especially out on the nose of the airplane. You can lower some of the weight with selective machining of unnecessary engine lugs and homemade accessory brackets. ATI even has a lightweight balancer available for the LS....don't know about the smallblock.
     
  6. Aug 27, 2012 #6

    4trade

    4trade

    4trade

    Well-Known Member

    Joined:
    Nov 1, 2010
    Messages:
    527
    Likes Received:
    71
    Location:
    Lahti/Finland
  7. Sep 8, 2012 #7
    The SAL Mustang presentation is excellent, everyone should take the time to read it. Some things have changed since it was written (I think the LS2 is no longer in production) but
    anyone who researches the LS engine will find some even better possibilities in todays GM and aftermarket offerings. The LS3 block offers more displacement for a reasonable price.
    Couple that with a 4 inch crank and get 415 cu in. You can use a Lunati,Scat,or Eagle crank that has the extended snout for the dry sump pump from an LS7 or standard snout for
    a conventional geroter oil pump. Buy some lower compression pistons and then bolt on some dirt cheap ($100-$150) used LS1 heads (rebuild them) and a LQ4 (dirt cheap $50-$150
    complete with injectors) for torque. Since the engine wil not be turning high rpms, LS1 heads will flow plenty of air and since they already need rebuilding, you can put some longer length
    valves in them. The reason for that would be to get as much lift as possible from a cam to allow really good cylinder filling. A lower comp piston is used to keep the comp ratio down
    with the LS1 heads. It all kinda falls into place if someone is willing to build an engine (you can get a 415 shortblock for about $4200 off Ebay)
     
  8. Sep 8, 2012 #8

    4trade

    4trade

    4trade

    Well-Known Member

    Joined:
    Nov 1, 2010
    Messages:
    527
    Likes Received:
    71
    Location:
    Lahti/Finland
    I am very happy with GM design of these engines. Heads are really great for stock factory engine. I am building my friend Lingenfelter Corvette (only example here in Finland), bi turbo LS 2 and occasionally i am touch with his LS 3 Historic racer (Corvette too) engine. LS series engines is exceptionally fine design, that you just cant find at that price anywhere else. Parts of these engines is real bargain and LS series can tolerate real abuse in a street or race car.

    I think that this engine + turbo with mild boost will be stunning candidate for V8 series of autoconversion. Small boost will drop HP level at reasonable rpm level (long TBO) and tons of power.
     
  9. Sep 8, 2012 #9

    BoeveP51

    BoeveP51

    BoeveP51

    Well-Known Member Lifetime Supporter

    Joined:
    Jan 25, 2008
    Messages:
    97
    Likes Received:
    10
    Location:
    Spring Hill, FL - formerly W. Ossipee, NH
    The SBC weighs about 40 lbs more than the LS1. I have both in my hangar at the moment. Still trying to decide which to use. If weight were only restriction then the LS wins, but....
     
  10. Sep 10, 2012 #10
    Well, here I go ........with both feet! As much as I admire and respect the venerable smallblock, it will gradually become the next flathead ford to the engine world. The LS has so many more advantages it hard to know where to start. Most people feel tht the small block is the ultimate cheap auto engine for an airplane.....but if you compare apples to apples (aluminum to aluminum) the LS Block and heads are way cheaper to obtain. Crankshafts and pistons will be similar in price depending on what you decide to use, but you can get a basic smallblock set up cheaper.............but is that the one you want in your airplane. The perhiperal stuff for the LS will cost more. The LS easily produces lots of power and it has six bolt main caps to surround your crank which is raised into the block for additional strength. And,on and on and on........
     
  11. Sep 10, 2012 #11

    Toobuilder

    Toobuilder

    Toobuilder

    Well-Known Member

    Joined:
    Jan 20, 2010
    Messages:
    4,471
    Likes Received:
    3,274
    Location:
    Mojave, Ca
    Too late! The SBC IS the flathead of this generation. I'm pretty sure there's a "Small Blocks Forever" bumper sticker out there somewhere...

    Unless you have a free aluminum smallblock around, theres really not much sense in going that route for an airplane.
     
  12. Sep 10, 2012 #12

    RJW

    RJW

    RJW

    Well-Known Member

    Joined:
    Feb 9, 2011
    Messages:
    703
    Likes Received:
    201
    Location:
    Wisconsin and Kansas
    I’m a fan of LS and SBC motors as well as just about any motor. But to say that the SBC is the new flathead compared to LS is, at the very least, a little misleading. There has been no change in architecture between the SBC and the LS. They are both 90-degree, pushrod, two-valve motors. The peripherals (EFI, precise timing, etc.) that come with LS motors contribute greatly to the impression that the LS represents a huge leap in technology over the dinosaur SBC. But basically they are both wedge motors the layout of which has been around for decades.

    A request for ekimneirbo: I think you posted a picture of a bare LS block that you have in your shop. Would you mind grabbing your bathroom scale and weighing the block? Please include the main caps and bolts if that’s possible.

    Thanks,
    Rob
     
  13. Sep 10, 2012 #13

    Hello Rob,

    Don't mean to ruffle your feathers but metaphorically speaking the
    days of the smallblock are beginning to be numbered. As GM stops producing they will remain in more limited numbers. Granted there were millions produced and they will stay around longer than the flathead, but technology for them will dry up because of newer engines that outproduce them hp wise. Racers who drive development with $$$$ want the latest technology....not so much the high dollar guy, but the average guy with a $30K Camaro that
    just got smoked by a Mustang. The caveat here is that carburetors on street driven engines cannot compare gas mileage wise. So, while someone may build a 500 hp smallblock, a lack of reasonable gas mileage will keep him from enjoying much driving time. I have
    much respect for the smallblock, but personally I'm looking toward whats in the future. I think the biggest thing keeping smallblocks on the road is fear of the computers in modern engines....but aftermarket suppliers are simplifying that everyday.

    As for the engine block, GM says they weigh 110 lbs. I can put one on a scale if you would prefer, but thats gonna be pretty close. A real bargain at $5 per copy at your local GM dealer is their GM Performance Parts Catalog. It covers everything from a smallblock to a Big Block and LS engines and is really a wealth of info. Just make sure they don't hand you last years book.


    Differences 1.jpg
     
  14. Sep 11, 2012 #14

    Toobuilder

    Toobuilder

    Toobuilder

    Well-Known Member

    Joined:
    Jan 20, 2010
    Messages:
    4,471
    Likes Received:
    3,274
    Location:
    Mojave, Ca
    The SBC is the new flathead in the respect that it is no longer supported by the factory and is therefore doomed to having its best days behind it. I say this as a Pontiac guy, who not only saw my engine go extinct in 1979, but also the entire brand go under. Yes, the LS is a 90 degree, pushrod V8 like the SBC, but it is better in nearly every way. The main exception being aftermarket support, but that too is changing rapidly. So comparing the SBC to the flathead is not a slam - just accepting reality.
     
  15. Sep 11, 2012 #15
    While we are talking about weights, here is what the official GM Performance Catalog
    says.

    Smallblock Grey Iron Caps 4 Bolt 4" Bore 350 Main Bearing (10066034) 181 lbs
    Nodular Cast Iron Caps 4 Bolt 350 Main Bearing (12480175) 196
    Nodular Cast Iron Caps 4 Bolt 400 Main Bearing (12480049) 208
    Short Deck C Iron 8620 Main Caps 283 Bearing (24502650) 167
    (May want to check out aftermarket blocks)
    Aluminum 8620 Main Caps 350 Main Bearing (10185075) 90
    Aluminum 8620 Main Caps 400 Main Bearing (10134400) 89
    Aluminum 8620 Main Caps 400 Main Bearing (24502495) 101

    LS1-LS7 Aluminum 6 bolt Main Caps Large (400) Bearing 110

    Big Block Cast Iron 4 Bolt Cast Caps (19170538) 247
    Cast Iron 4 Bolt Main Caps (19170540) 269
    Cast Iron Bowtie 258-296
    Aluminum ZL1 (12370850) 233


    OK, this should provide some references for builders.
     
  16. Jun 20, 2015 #16

    TXFlyGuy

    TXFlyGuy

    TXFlyGuy

    Well-Known Member

    Joined:
    Apr 26, 2012
    Messages:
    1,513
    Likes Received:
    439
    Location:
    Republic of Texas
    The LS3 is 403 lbs. That is with the stock oil pan, starter, etc. You can lose much of this weight if need be.
     
  17. Jun 26, 2015 #17

    ekimneirbo

    ekimneirbo

    ekimneirbo

    Banned

    Joined:
    Oct 31, 2014
    Messages:
    1,009
    Likes Received:
    324
    Location:
    Deep South
    Some more reference info for LS engines

    [TD="width: 605, colspan: 8, align: center"]Gen III & Gen IV Small Blocks
    [TD="align: center"]Part Number[/TD] [TD="align: center"]Description[/TD] [TD="align: center"]Liters[/TD] [TD="align: center"]CID[/TD] [TD="align: center"]HP[/TD] [TD="align: center"]TQ[/TD] [TD="align: center"]Bore[/TD] [TD="align: center"]Stroke[/TD] [TD="align: center"]19165628[/TD] [TD="align: center"]LS327/327[/TD] [TD="align: center"]5.3[/TD] [TD="align: center"]327[/TD] [TD="align: center"]327[/TD] [TD="align: center"]347[/TD] [TD="align: center"]3.780"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]17801267[/TD] [TD="align: center"]LS1[/TD] [TD="align: center"]5.7[/TD] [TD="align: center"]346[/TD] [TD="align: center"]350[/TD] [TD="align: center"]365[/TD] [TD="align: center"]3.898"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]17801268[/TD] [TD="align: center"]LS6[/TD] [TD="align: center"]5.7[/TD] [TD="align: center"]346[/TD] [TD="align: center"]405[/TD] [TD="align: center"]395[/TD] [TD="align: center"]3.898"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19156262[/TD] [TD="align: center"]LQ9[/TD] [TD="align: center"]6.0[/TD] [TD="align: center"]364[/TD] [TD="align: center"]345[/TD] [TD="align: center"]380[/TD] [TD="align: center"]4.000"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]*19165484[/TD] [TD="align: center"]LS2[/TD] [TD="align: center"]6.0[/TD] [TD="align: center"]364[/TD] [TD="align: center"]400[/TD] [TD="align: center"]400[/TD] [TD="align: center"]4.000"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]*17802134[/TD] [TD="align: center"]LS364/440[/TD] [TD="align: center"]6.0[/TD] [TD="align: center"]364[/TD] [TD="align: center"]440[/TD] [TD="align: center"]404[/TD] [TD="align: center"]4.000"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]12611022[/TD] [TD="align: center"]L99[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]430[/TD] [TD="align: center"]424[/TD] [TD="align: center"]4.065[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19171224[/TD] [TD="align: center"]LS376/485[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]485[/TD] [TD="align: center"]475[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19171225[/TD] [TD="align: center"]LS376/515[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]515[/TD] [TD="align: center"]469[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19201992[/TD] [TD="align: center"]LS3[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]430[/TD] [TD="align: center"]424[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19211978[/TD] [TD="align: center"]LSA[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]556[/TD] [TD="align: center"]551[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19201990[/TD] [TD="align: center"]LS9[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]638[/TD] [TD="align: center"]604[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19171821[/TD] [TD="align: center"]CT525[/TD] [TD="align: center"]6.2[/TD] [TD="align: center"]376[/TD] [TD="align: center"]525[/TD] [TD="align: center"]471[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]3.622"[/TD] [TD="align: center"]19165058[/TD] [TD="align: center"]LS7[/TD] [TD="align: center"]7.0[/TD] [TD="align: center"]427[/TD] [TD="align: center"]505[/TD] [TD="align: center"]470[/TD] [TD="align: center"]4.125"[/TD] [TD="align: center"]4.000"[/TD] [TD="align: center"] [/TD] [TD="align: center"]* Discontinued[/TD] [TD="align: center"] [/TD] [TD="align: center"] [/TD] [TD="align: center"] [/TD] [TD="align: center"] [/TD] [TD="align: center"] [/TD] [TD="align: center"] [/TD]
    [/TD] [TD="width: 780, colspan: 12, align: center"]LS Compatibility - Heads vs. Intakes
    [TD="colspan: 4, align: center"]Intakes[/TD] [TD="colspan: 8, align: center"]Heads[/TD] [TD="width: 76, align: center"]Engine[/TD] [TD="width: 64, align: center"]Part #[/TD] [TD="width: 64, align: center"]Manifold[/TD] [TD="width: 64, align: center"]Port Type[/TD] [TD="width: 64, align: center"]12559855 LS1[/TD] [TD="width: 64, align: center"]12564824 LS6/LS2[/TD] [TD="width: 64, align: center"]12562319 LQ9[/TD] [TD="width: 64, align: center"]88958665 CNC LS6[/TD] [TD="width: 64, align: center"]88958622 CNC LS6[/TD] [TD="width: 64, align: center"]12582713 L76/L92[/TD] [TD="width: 64, align: center"]12615879 LS3[/TD] [TD="width: 64, align: center"]88958698 CNC L92[/TD] [TD="align: right"]88894339[/TD] [TD="align: right"]88958675[/TD] [TD="align: right"]12590123[/TD] [TD="align: right"]12610434[/TD] [TD="align: right"]25534416[/TD] [TD="align: right"]25534401[/TD] [TD="align: right"]19166952[/TD] [TD="align: right"]19172322[/TD] [TD="align: right"]12568976[/TD] [TD="align: right"]12610435[/TD] [TD="align: right"]25534413[/TD] [TD="align: right"]25534394[/TD] [TD="align: right"]19166948[/TD] [TD="align: right"]19166950[/TD] [TD="align: right"]19166954[/TD] [TD="colspan: 2"]No=not compatable[/TD] [TD="colspan: 3"]Yes=direct compatability[/TD] [TD="colspan: 4, align: center"]Intakes[/TD] [TD="colspan: 8, align: center"]Heads[/TD] [TD="width: 76, align: center"]Engine[/TD] [TD="width: 64, align: center"]Part #[/TD] [TD="width: 64, align: center"]Manifold[/TD] [TD="width: 64, align: center"]Port Type[/TD] [TD="width: 64"]19201807 LSX-L92[/TD] [TD="width: 64"]19201805 LSX-LS3[/TD] [TD="width: 64"]19213963 LSX-LS9[/TD] [TD="width: 64, align: center"]12578450 CNC LS7[/TD] [TD="width: 64"]19201806 LSX-LS7[/TD] [TD="width: 64"]19166981 LSX-CT[/TD] [TD="width: 64"]19166979 LSX-DR[/TD] [TD="width: 64, align: center"]12480090 C5R[/TD] [TD="align: right"]88894339[/TD] [TD="align: right"]88958675[/TD] [TD="align: right"]12590123[/TD] [TD="align: right"]12610434[/TD] [TD="align: right"]25534416[/TD] [TD="align: right"]25534401[/TD] [TD="align: right"]19166952[/TD] [TD="align: right"]19172322[/TD] [TD="align: right"]12568976[/TD] [TD="align: right"]12610435[/TD] [TD="align: right"]25534413[/TD] [TD="align: right"]25534394[/TD] [TD="align: right"]19166948[/TD] [TD="align: right"]19166950[/TD] [TD="align: right"]19166954[/TD] [TD="colspan: 2"]No=not compatable[/TD] [TD="colspan: 3"]Yes=direct compatability[/TD]
    LS1/LS6EFI Cathedral Yes Yes Yes Yes Yes No No No
    LS2/LQ44-bbl Cathedral Yes Yes Yes Yes Yes No No No
    LQ4/LQ9 N/A EFI Cathedral Yes Yes Yes Yes Yes No No No
    L76EFI L92 No No No No No Yes Yes Yes
    LS3EFI L92 No No No No No Yes Yes Yes
    L76/L92/LS34-bbl w/inj L92 No No No No No Yes Yes Yes
    L76/L92/LS34-bbl L92 No No No No No Yes Yes Yes
    L92/LS3LSX 4bbl L92 No No No No No Yes Yes Yes
    L92/LS3LSX 4bbl L92 No No No No No Yes Yes Yes
    LS7 '05-'08EFI LS7 No No No No No No No No
    LS7 '09EFI LS7 No No No No No No No No
    LS74-bbl w/inj LS7 No No No No No No No No
    LS74-bbl LS7 No No No No No No No No
    LSX 454LSX 4bbl LS7 No No No No No No No No
    LSX 4bbl LSX-CT No No No No No No No No
    LSX 4bbl LSX-DR No No No No No No No No
    LS1/LS6EFI Cathedral No No No No No No No No
    LS2/LQ44-bbl Cathedral No No No No No No No No
    LQ4/LQ9 N/A EFI Cathedral Yes Yes Yes No No No No No
    L76EFI L92 Yes Yes Yes No No No No No
    LS3EFI L92 Yes Yes Yes No No No No No
    L76/L92/LS34-bbl w/inj L92 Yes Yes Yes No No No No No
    L76/L92/LS34-bbl L92 Yes Yes Yes No No No No No
    L92/LS3LSX 4bbl L92 Yes Yes Yes No No No No No
    L92/LS3LSX 4bbl L92 Yes Yes Yes No No No No No
    LS7 '05-'08EFI LS7 No No No Yes Yes No No No
    LS7 '09EFI LS7 No No No Yes Yes No No No
    LS74-bbl w/inj LS7 No No No Yes Yes No No No
    LS74-bbl LS7 No No No Yes Yes No No No
    LSX 454LSX 4bbl LS7 No No No Yes Yes No No No
    LSX 4bbl LSX-CT No No No No No Yes Yes No
    LSX 4bbl LSX-DR No No No No No Yes Yes No
    [/TD] [TD="width: 913, align: center"]
    [TD="width: 721, colspan: 11, align: center"]LS Compatability - Heads vs. Blocks[/TD] [TD="colspan: 4, align: center"]Blocks[/TD] [TD="colspan: 7, align: center"]Heads[/TD] [TD="width: 76, align: center"]Engine[/TD] [TD="width: 64, align: center"]Part #[/TD] [TD="width: 69, align: center"]Bore Size[/TD] [TD="width: 64, align: center"]12559855 LS1[/TD] [TD="width: 64, align: center"]12564824 LS6/LS2[/TD] [TD="width: 64, align: center"]12562319 LQ9[/TD] [TD="width: 64, align: center"]88958665 CNC LS6[/TD] [TD="width: 64, align: center"]88958622 CNC LS6[/TD] [TD="width: 64, align: center"]12582713 L76/L92[/TD] [TD="width: 64, align: center"]12598594 LS3[/TD] [TD="width: 64, align: center"]88958698 CNC L92[/TD] [TD="align: right"]12561166[/TD] [TD="align: right"]12572808[/TD] [TD="align: right"]12568950[/TD] [TD="align: right"]12584727[/TD] [TD="align: right"]17802854[/TD] [TD="align: right"]25534427[/TD] [TD="align: right"]12480030[/TD] [TD="align: right"]19213964[/TD] [TD="align: right"]19166454[/TD] [TD="align: right"]19166097[/TD] [TD="colspan: 2"]No=not compatable[/TD] [TD="colspan: 3"]Yes=direct compatability[/TD] [TD="colspan: 2"]*=4.00 min Bore[/TD] [TD="colspan: 2"]**=4.125" min Bore[/TD] [TD="colspan: 2"]***=4.100" min Bore[/TD] [TD="colspan: 4, align: center"]Blocks[/TD] [TD="colspan: 7, align: center"]Heads[/TD] [TD="width: 76, align: center"]Engine[/TD] [TD="width: 64, align: center"]Part #[/TD] [TD="width: 69, align: center"]Bore Size[/TD] [TD="width: 64"]19201807 LSX-L92[/TD] [TD="width: 64"]19201805 LSX-LS3[/TD] [TD="width: 64"]19213963 LSX-LS9[/TD] [TD="width: 64, align: center"]12578450 CNC LS7[/TD] [TD="width: 64"]19201806 LSX-LS7[/TD] [TD="width: 64"]19166981 LSX-CT[/TD] [TD="width: 64"]19166979 LSX-DR[/TD] [TD="width: 64, align: center"]12480090 C5R[/TD] [TD="align: right"]12561166[/TD] [TD="align: right"]12572808[/TD] [TD="align: right"]12568950[/TD] [TD="align: right"]12584727[/TD] [TD="align: right"]17802854[/TD] [TD="align: right"]25534427[/TD] [TD="align: right"]12480030[/TD] [TD="align: right"]19213964[/TD] [TD="align: right"]19166454[/TD] [TD="align: right"]19166097[/TD] [TD="colspan: 2"]No=not compatable[/TD] [TD="colspan: 3"]Yes=direct compatability[/TD] [TD="colspan: 2"]*=4.00 min Bore[/TD] [TD="colspan: 2"]**=4.125" min Bore[/TD] [TD="colspan: 2"]***=4.100" min Bore[/TD]
    LS1/LS63.89" Yes Yes Yes Yes Yes No No No
    LQ4/LQ94.00" Yes Yes Yes Yes Yes Yes Yes Yes
    LS2/L764.00" Yes Yes Yes Yes Yes Yes Yes Yes
    L92/LS34.06" Yes Yes Yes Yes Yes Yes Yes Yes
    LSA/LS9 4.06" Yes Yes Yes Yes Yes Yes Yes Yes
    LS74.125" Yes Yes Yes Yes Yes Yes Yes Yes
    LS7*4.125" Yes Yes Yes Yes Yes Yes Yes Yes
    C5R4.12"-4.16" Yes Yes Yes Yes Yes Yes Yes Yes
    LSX S/B3.89" Yes Yes Yes Yes Yes * * *
    LSX3.99"-4.25" * * * * * * * *
    LSX TD3.99"-4.25" * * * * * * * *
    LS1/LS63.89" Yes No No No No No No No
    LQ4/LQ94.00" Yes Yes Yes No No No No No
    LS2/L764.00" Yes Yes Yes No No No No No
    L92/LS34.06" Yes Yes Yes No No No No No
    LSA/LS9 4.06" Yes Yes Yes No No No No No
    LS74.125" Yes Yes Yes Yes Yes Yes Yes Yes
    LS7*4.125" Yes Yes Yes Yes Yes Yes Yes Yes
    C5R4.12"-4.16" Yes Yes Yes Yes Yes Yes Yes Yes
    LSX S/B3.89" ** ** ** ** *** ** ** **
    LSX3.99"-4.25" ** ** ** ** *** ** ** **
    LSX TD3.99"-4.25" ** ** ** ** *** ** ** **
    [/TD] [TD="width: 862, colspan: 13, align: center"]LS Series Blocks
    [TD="width: 76, align: center"]Origin[/TD] [TD="width: 64, align: center"]Part #[/TD] [TD="width: 72, align: center"]Material[/TD] [TD="width: 64, align: center"]Deck Height[/TD] [TD="width: 79, align: center"]Bore[/TD] [TD="width: 52, align: center"]Main Bolt[/TD] [TD="width: 64, align: center"]Cap Material[/TD] [TD="width: 71, align: center"]Crank Jrnl Dia[/TD] [TD="width: 64, align: center"]Oiling[/TD] [TD="width: 64, align: center"]Rr Main Seal[/TD] [TD="width: 64, align: center"]Max Stroke[/TD] [TD="width: 64, align: center"]Max HP[/TD] [TD="width: 64, align: center"]Usage[/TD] [TD="align: center"]12561166[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]3.89"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]450[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]12568950[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]450[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]12584727[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.065"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]525[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]17802854[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.125"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]PM[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Dry[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.10"[/TD] [TD="align: center"]550[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]25534427[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.125"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]PM[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Dry[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.10"[/TD] [TD="align: center"]550[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]12480030[/TD] [TD="align: center"]Alum[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.117"-4.160"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]8620 Steel[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.10"[/TD] [TD="align: center"]900[/TD] [TD="align: center"]Pro[/TD] [TD="align: center"]12572808[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]9.240[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.00"[/TD] [TD="align: center"]500[/TD] [TD="align: center"]Street[/TD] [TD="align: center"]19166454[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]9.260[/TD] [TD="align: center"]3.99"-4.250"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]1045 Steel[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.25"[/TD] [TD="align: center"]1500+[/TD] [TD="align: center"]Street/Pro[/TD] [TD="align: right"]19166097[/TD] [TD="align: center"]Iron[/TD] [TD="align: center"]9.700[/TD] [TD="align: center"]3.99"-4.250"[/TD] [TD="align: center"]6[/TD] [TD="align: center"]1045 Steel[/TD] [TD="align: center"]Std LS 2.56[/TD] [TD="align: center"]Wet[/TD] [TD="align: center"]1 Pc[/TD] [TD="align: center"]4.50"[/TD] [TD="align: center"]1500+[/TD] [TD="align: center"]Street/Pro[/TD]
    LS1/LS6
    LS2
    L92/LS3
    LS7
    LS7
    C5R
    LQ9
    LSX
    LSX
    [/TD] [TD="width: 924, align: center"]
    [TD="width: 871, colspan: 11"]LS Series Heads
    [TD="width: 76"]Part #[/TD] [TD="width: 119"]Origin[/TD] [TD="width: 63"]Material[/TD] [TD="width: 50"]Port Size[/TD] [TD="width: 83"]Valve Angle[/TD] [TD="width: 64"]Chamber CC's[/TD] [TD="width: 57"]Int Valves[/TD] [TD="width: 55"]Exh Valves[/TD] [TD="width: 70"]Port Type[/TD] [TD="width: 64"]Rocker Stud[/TD] [TD="width: 170"]Notes[/TD]
    12564825 Bare LS2 & LS6 Alum 210 15 degree 64.5 2.00 1.55 Cathedral Bolt Bare LS2/LS6
    12564824 Stock LS6 Alum 210 15 degree 64.5 2.00 1.55 Cathedral Bolt Hollow/Sodium filled Valves
    12576063 Stock LS2 Alum 210 15 degree 64.5 2.00 1.55 Cathedral Bolt Solid stem valves
    88958622 CNC LS6 Alum 250 15 degree 61.9 2.00 1.55 Cathedral Bolt 11.2 compression
    88958665 CNC LS6 Alum 250 15 degree 65 2.00 1.55 Cathedral Bolt 10.5 compression
    88958765 CNC LS2 Alum 250 15 degree 64.5 2.00 1.55 Cathedral Bolt Solid stem valves
    12582714 Bare L76/L92 Alum 260 15 degree 70 2.16 1.59 L92 Bolt Solid stem valves
    12582713 Stock L76/L92 Alum 260 15 degree 70 2.16 1.59 L92 Bolt Solid stem valves
    88958698 CNC L76/L92 Alum 279 15 degree 68 2.16 1.59 L92 Bolt Solid stem valves
    12598594 Stock LS3 Alum 260 15 degree 70 2.16 1.59 L92 Bolt Hollow/Sodium filled Valves
    12578450 Bare LS7 Alum 270 12 degree 70 2.20 1.61 LS7 Bolt Bare LS7
    12578449 Stock LS7 Alum 270 12 degree 70 2.20 1.61 LS7 Bolt Titanium/sodium filled valves
    25534428 As-cast LS7 Alum - 12 degree 66 2.20 1.61 LS7 Bolt Titanium/sodium filled valves
    12480005 * C5R 1st design Alum 210 11 degree 38 2.18 1.63 C5R Shaft As cast-no seats, guides *
    12480090 C5R 2nd design Alum 210 11 degree 30 2.18 1.63 C5R Shaft As cast-no seats, guides
    19201807 LSX-L92 Small Bore Alum 260 15 degree 70 2.00 1.55 L92 Bolt Hollow/Sodium filled Valves
    19201805 LSX-LS3 Alum 260 15 degree 70 2.16 1.59 L92 Bolt Hollow/Sodium filled Valves
    19201806` LSX-LS7 Alum 270 12 degree 70 2.20 1.61 LS7 Bolt Hollow/Sodium filled Valves
    19166981 LSX-CT Alum 302 11 degree 45 2.20 1.61 LSX-CT/DR Shaft CNC machined bare head
    19166979 LSX-DR Alum 313 11 degree 50 2.25-2.28 1.6-1.65 LSX-CT/DR Shaft CNC machined bare head
    *Discontinued
    [/TD]
    [/TD] [TD="width: 524, colspan: 5, align: center"]LS Series Head Gaskets & Bolts
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 143, align: center"]Engine[/TD] [TD="width: 76, align: center"]Thickness[/TD] [TD="width: 82, align: center"]Max Bore[/TD] [TD="width: 138, align: center"]Description[/TD] [TD="width: 85, align: center"]12498544[/TD] [TD="width: 143, align: center"]LS1 2002-2004[/TD] [TD="width: 76, align: center"].047"[/TD] [TD="width: 82, align: center"]3.92[/TD] [TD="width: 138, align: center"]Standard LS Bolt Pattern[/TD] [TD="width: 85, align: center"]12589226[/TD] [TD="width: 143, align: center"]LS1 & LS6[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]3.92"[/TD] [TD="width: 138, align: center"]Standard LS Bolt Pattern[/TD] [TD="width: 85, align: center"]12589227[/TD] [TD="width: 143, align: center"]LS2[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.02"[/TD] [TD="width: 138, align: center"]Standard LS Bolt Pattern[/TD] [TD="width: 85, align: center"]12610046[/TD] [TD="width: 143, align: center"]LS3 & L92[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.080"[/TD] [TD="width: 138, align: center"]Standard LS Bolt Pattern[/TD] [TD="width: 85, align: center"]12582179[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.140"[/TD] [TD="width: 138, align: center"]Standard LS Bolt Pattern[/TD] [TD="width: 85, align: center"]19170418[/TD] [TD="width: 143, align: center"]LSX[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.100"[/TD] [TD="width: 138, align: center"]Standard LS & 6-Bolt Pattern Blocks & Heads[/TD] [TD="width: 85, align: center"]19170419[/TD] [TD="width: 143, align: center"]LSX[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.200"[/TD] [TD="width: 138, align: center"]Standard LS & 6-Bolt Pattern Blocks & Heads[/TD] [TD="width: 85, align: center"]19170420[/TD] [TD="width: 143, align: center"]LSX[/TD] [TD="width: 76, align: center"].051"[/TD] [TD="width: 82, align: center"]4.250"[/TD] [TD="width: 138, align: center"]Standard LS & 6-Bolt Pattern Blocks & Heads[/TD] [TD="align: center"]17800568[/TD] [TD="align: center"]1/2004 & up LS Engines[/TD] [TD="colspan: 2, align: center"]Includes 15 bolts[/TD] [TD="width: 138, align: center"]5mm shorter than 1st Design[/TD] [TD="align: center"]12498545[/TD] [TD="align: center"]97-1/04 LS Engines[/TD] [TD="colspan: 2, align: center"]Includes 15 bolts[/TD] [TD="width: 138, align: center"] [/TD]
    [/TD] [TD="width: 770, colspan: 6, align: center"]LS Series Camshafts
    [TD="width: 76, align: center"]Part #[/TD] [TD="width: 132, align: center"]Description[/TD] [TD="width: 76, align: center"]Duration @ .050" lift[/TD] [TD="width: 82, align: center"]Max Lift (In) (1.7 rocker)[/TD] [TD="width: 83, align: center"]Lobe Seperation[/TD] [TD="width: 321, align: center"]Technical Notes[/TD] [TD="align: center"]12565308[/TD] [TD="align: center"]2002-2004 LS6 Cam[/TD] [TD="width: 76, align: center"]I:204 E:218[/TD] [TD="width: 82, align: center"]I:550 E:550[/TD] [TD="align: center"]117.5[/TD] [TD="width: 321, align: center"]Cam requires valve spring P/N 12586484[/TD] [TD="align: center"]12560950[/TD] [TD="align: center"]2001 LS6 Cam[/TD] [TD="width: 76, align: center"]I:207 E:217[/TD] [TD="width: 82, align: center"]I:525 E:525[/TD] [TD="align: center"]116[/TD] [TD="width: 321, align: center"]Cam requires valve spring P/N 12586484[/TD] [TD="align: center"]12480110[/TD] [TD="align: center"]ASA Cam[/TD] [TD="width: 76, align: center"]I:226 E:236[/TD] [TD="width: 82, align: center"]I:525 E:525[/TD] [TD="align: center"]110[/TD] [TD="width: 321, align: center"]Cam requires valve spring P/N 12586484 "ASA" cam for off-highway use[/TD] [TD="align: center"]12480033[/TD] [TD="align: center"]Hot Cam Kit[/TD] [TD="width: 76, align: center"]I:219 E:228[/TD] [TD="width: 82, align: center"]I:525 E:525[/TD] [TD="align: center"]112[/TD] [TD="width: 321, align: center"]Kit includes 16 LS6 Valve Springs P/N 12565117 and retainers[/TD] [TD="align: center"]88958733[/TD] [TD="align: center"]LS Hot Cam[/TD] [TD="width: 76, align: center"]I:219 E:228[/TD] [TD="width: 82, align: center"]I:525 E:525[/TD] [TD="align: center"]112[/TD] [TD="width: 321, align: center"]Cam only for Hot Cam Kit 12480033[/TD] [TD="align: center"]19166972[/TD] [TD="align: center"]LSX-454 Cam[/TD] [TD="width: 76, align: center"]I:236 E:246[/TD] [TD="width: 82, align: center"]I:600 E:600[/TD] [TD="align: center"]110[/TD] [TD="width: 321, align: center"]Max lift with 1.8 rockers .635/.635[/TD] [TD="align: center"]88958606[/TD] [TD="align: center"]Showroom Stock cam[/TD] [TD="width: 76, align: center"]I:239 E:251[/TD] [TD="width: 82, align: center"]I:570 E:570[/TD] [TD="align: center"]106.5[/TD] [TD="width: 321, align: center"]Showroom Stock racing design, requires hollow intake valves #12565311, hollow exhaust valves #12565312, valve springs #12586484, and aftermarket notched pistons or machined stock pistons[/TD] [TD="align: center"]12571251[/TD] [TD="align: center"]LS7[/TD] [TD="width: 76, align: center"]I:211 E:230[/TD] [TD="width: 82, align: center"](1.8 Rocker) I:591 E:591[/TD] [TD="align: center"]121[/TD] [TD="width: 321, align: center"]Stock LS7 camshaft[/TD] [TD="align: center"]12561721[/TD] [TD="width: 132, align: center"]LS1 2001-2004 LQ9 2002-2006[/TD] [TD="width: 76, align: center"]I:196 E:201[/TD] [TD="width: 82, align: center"]I:467 E:479[/TD] [TD="align: center"]116[/TD] [TD="width: 321, align: center"]Stock cam for 2002-2006 LQ9 and 2001-2004 LS1[/TD] [TD="align: center"]88958722[/TD] [TD="align: center"]LS Stage 2 Cam[/TD] [TD="width: 76, align: center"]I:227 E:239[/TD] [TD="width: 82, align: center"](1.7 Rocker) I:551 E:551[/TD] [TD="align: center"]108[/TD] [TD="width: 321, align: center"]Max lift with 1.8 rockers .583/.583[/TD] [TD="align: center"]88958723[/TD] [TD="align: center"]LS Stage 3 Cam[/TD] [TD="width: 76, align: center"]I:233 E:276[/TD] [TD="width: 82, align: center"](1.7 Rocker) I:595 E:595[/TD] [TD="align: center"]107[/TD] [TD="width: 321, align: center"]Max lift with 1.8 rockers .630/.630[/TD]
    [/TD] [TD="width: 910, align: center"]
    [TD="width: 910, colspan: 9"]LS Series Pistons
    [TD="width: 76"]Part #[/TD] [TD="width: 101"]Engine Size[/TD] [TD="width: 63"]Bore Size[/TD] [TD="width: 67"]Oversize[/TD] [TD="width: 83"]Rod Length[/TD] [TD="width: 64"]Pin Type[/TD] [TD="width: 64"]Comp Ratio[/TD] [TD="width: 71"]With Chamber[/TD] [TD="width: 321"]Description[/TD]
    88984245 5.7L 3.898" - 6.098" Pressed - 65.00 Hypereutectic LS1 & LS6 replacement
    88984246 5.7L 3.898" +.010" 6.098" Pressed - 65.00 Hypereutectic LS1 & LS6 replacement
    89017478 6.0L 4.000" - 6.098" Floated 10.90 65.00 Hypereutectic LS2 & LQ9 replacement
    89017479 6.0L 4.000" +.020" 6.098" Floated 10.90 65.00 Hypereutectic LS2 & LQ9 replacement
    12602624 7.0L 4.125' - 6.067" Floated 11.00 70.00 Hypereutectic LS7 replacement includes Titanium Rod
    89018171 7.0L 4.125" +.020" 6.067" Floated 11.00 70.00 Hypereutectic LS7 replacement
    19166957 LSX376 4.065" 6.098" Flat - 4032 Forged Aluminum -Piston comes w/ rings
    19166958 LSX454 4.185" LSX rod 0.866 Dished - 4032 Forged Aluminum -
    [/TD] [/TD] [TD="width: 696, colspan: 5, align: center"]LS Rings
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 69, align: center"]Bore Size[/TD] [TD="width: 76, align: center"]Oversize[/TD] [TD="width: 117, align: center"]Ring Thickness[/TD] [TD="width: 349, align: center"]Description[/TD] [TD="width: 85, align: center"]12499234[/TD] [TD="width: 69, align: center"]3.898"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.5, 1.5, 2.5mm[/TD] [TD="width: 349, align: center"]Set of 8 ring packs, standard size for LS1 & LS6[/TD] [TD="width: 85, align: center"]12499236[/TD] [TD="width: 69, align: center"]4.000"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.5, 1.5, 2.5mm[/TD] [TD="width: 349, align: center"]Set of 8 ring packs, standard size for 1999-2005 LQ4 & LQ9[/TD] [TD="width: 85, align: center"]12499235[/TD] [TD="width: 69, align: center"]3.780"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.5, 1.5, 2.5mm[/TD] [TD="width: 349, align: center"]Set of 8 ring packs, standard size for 1999-2005 5.3L[/TD] [TD="width: 85, align: center"]89017484[/TD] [TD="width: 69, align: center"]4.000"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.5, 1.5, 2.5mm[/TD] [TD="width: 349, align: center"]Production ring pack for 2005-2006 LS2 & 2006 L76[/TD] [TD="width: 85, align: center"]88894243[/TD] [TD="width: 69, align: center"]4.000"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.5, 1.5, 2.5mm[/TD] [TD="width: 349, align: center"]Production ring pack for 2005-2006 LQ9[/TD] [TD="width: 85, align: center"]89017776[/TD] [TD="width: 69, align: center"]4.125"[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]1.2, 1.2, 2.0mm[/TD] [TD="width: 349, align: center"]Production ring pack for 2006 LS7[/TD] [TD="width: 85, align: center"]89017777[/TD] [TD="width: 69, align: center"]4.125"[/TD] [TD="width: 76, align: center"]+.020"[/TD] [TD="width: 117, align: center"]1.2, 1.2, 2.0mm[/TD] [TD="width: 349, align: center"]Oversize LS7 ring pack[/TD]
    [/TD] [TD="width: 779, colspan: 6, align: center"]LS Series Push Rods
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 132, align: center"]Engine[/TD] [TD="width: 76, align: center"]Material[/TD] [TD="width: 82, align: center"]Diameter[/TD] [TD="width: 83, align: center"]Length[/TD] [TD="width: 321, align: center"]Description[/TD] [TD="width: 85, align: center"]12593344[/TD] [TD="width: 132, align: center"]LS1, LS2, LS3, LS6 & L92[/TD] [TD="width: 76, align: center"]1010 Steel[/TD] [TD="width: 82, align: center"]5/16"[/TD] [TD="width: 83, align: center"]7.325"[/TD] [TD="width: 321, align: center"]Production pushrod[/TD] [TD="width: 85, align: center"]12593344[/TD] [TD="width: 132, align: center"]LS7[/TD] [TD="width: 76, align: center"]1010 Steel[/TD] [TD="width: 82, align: center"]3/8"[/TD] [TD="width: 83, align: center"]7.750"[/TD] [TD="width: 321, align: center"]Production pushrod[/TD]
    [/TD] [TD="width: 570, colspan: 6, align: center"]LS Series Valves
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 143, align: center"]Engine[/TD] [TD="width: 76, align: center"]Position[/TD] [TD="width: 92, align: center"]Valve Size[/TD] [TD="width: 82, align: center"]Stem Dia[/TD] [TD="width: 92, align: center"] [/TD] [TD="width: 85, align: center"]12565311[/TD] [TD="width: 143, align: center"]LS6[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.00"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Hollow Stem[/TD] [TD="width: 85, align: center"]12563063[/TD] [TD="width: 143, align: center"]LS2[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.00"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Solid Stem[/TD] [TD="width: 85, align: center"]12590773[/TD] [TD="width: 143, align: center"]L76 & L92[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.165"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Solid Stem[/TD] [TD="width: 85, align: center"]12605223[/TD] [TD="width: 143, align: center"]LSA[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.165"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Solid Stem[/TD] [TD="width: 85, align: center"]12569427[/TD] [TD="width: 143, align: center"]LS3[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.165"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Hollow Stem[/TD] [TD="width: 85, align: center"]12605524[/TD] [TD="width: 143, align: center"]LS9[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.165"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Titanium[/TD] [TD="width: 85, align: center"]12591644[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"]Intake[/TD] [TD="width: 92, align: center"]2.20"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Titanium[/TD] [TD="width: 85, align: center"]12565312[/TD] [TD="width: 143, align: center"]LS6[/TD] [TD="width: 76, align: center"]Exhaust[/TD] [TD="width: 92, align: center"]1.50"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Sodium Filled[/TD] [TD="width: 85, align: center"]12563064[/TD] [TD="width: 143, align: center"]LS2[/TD] [TD="width: 76, align: center"]Exhaust[/TD] [TD="width: 92, align: center"]1.50"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Solid Stem[/TD] [TD="width: 85, align: center"]12582719[/TD] [TD="width: 143, align: center"]L76, L92 & LS3[/TD] [TD="width: 76, align: center"]Exhaust[/TD] [TD="width: 92, align: center"]1.59"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Solid Stem[/TD] [TD="width: 85, align: center"]12605525[/TD] [TD="width: 143, align: center"]LS9[/TD] [TD="width: 76, align: center"]Exhaust[/TD] [TD="width: 92, align: center"]1.59"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Sodium Filled[/TD] [TD="width: 85, align: center"]12578455[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"]Exhaust[/TD] [TD="width: 92, align: center"]1.61"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]Sodium Filled[/TD] [TD="width: 85, align: center"]17801930[/TD] [TD="width: 143, align: center"]LS2 & LS6[/TD] [TD="width: 76, align: center"](4)Intake & (4)Exhaust[/TD] [TD="width: 92, align: center"]I -2.00" E-1.50"[/TD] [TD="width: 82, align: center"]8mm[/TD] [TD="width: 92, align: center"]LS6 Hollow & Sodium Valves[/TD]
    [/TD] [TD="width: 698, colspan: 7, align: center"]LS Series Valve Springs
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 143, align: center"]Engine[/TD] [TD="width: 76, align: center"]Style[/TD] [TD="width: 92, align: center"]Installed Height[/TD] [TD="width: 82, align: center"]Open Pressure[/TD] [TD="width: 82, align: center"]Max Lift[/TD] [TD="width: 138, align: center"]Description[/TD] [TD="width: 85, align: center"]12586484[/TD] [TD="width: 143, align: center"]Standard LS2, LS6 & LS6[/TD] [TD="width: 76, align: center"]Beehive Style[/TD] [TD="width: 92, align: center"]1.800" Installed @ 90# pressure[/TD] [TD="width: 82, align: center"]1.250" @ 295 # pressure[/TD] [TD="width: 82, align: center"].570"[/TD] [TD="width: 138, align: center"]Individual[/TD] [TD="width: 85, align: center"]12499224[/TD] [TD="width: 143, align: center"]Standard LS2, LS6 & LS6[/TD] [TD="width: 76, align: center"]Beehive Style[/TD] [TD="width: 92, align: center"]1.800" Installed @ 90# pressure[/TD] [TD="width: 82, align: center"]1.250" @ 295 # pressure[/TD] [TD="width: 82, align: center"].570"[/TD] [TD="width: 138, align: center"]Set of 16 P/N 12586484[/TD] [TD="width: 85, align: center"]12589774[/TD] [TD="width: 143, align: center"]Standard L76/L92 Springs[/TD] [TD="width: 76, align: center"]Beehive Style[/TD] [TD="width: 92, align: center"]1.800" Installed @ 90# pressure[/TD] [TD="width: 82, align: center"]1.300" @ 264# pressure[/TD] [TD="width: 82, align: center"].530"[/TD] [TD="width: 138, align: center"] [/TD] [TD="width: 85, align: center"]12578457[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"]Beehive Style[/TD] [TD="width: 92, align: center"]1.960" Installed @ 101# pressure[/TD] [TD="width: 82, align: center"]1.368" @ 310# pressure[/TD] [TD="width: 82, align: center"].600"[/TD] [TD="width: 138, align: center"] [/TD]
    [/TD] [TD="width: 774, colspan: 8, align: center"]LS Timing Components
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 143, align: center"]Engine[/TD] [TD="width: 76, align: center"]Part[/TD] [TD="width: 76, align: center"]Oil Pump System[/TD] [TD="width: 394, colspan: 4, align: center"]Description[/TD] [TD="width: 85, align: center"]12588670[/TD] [TD="width: 143, align: center"]LS2[/TD] [TD="width: 76, align: center"]Timing Chain Dampner[/TD] [TD="width: 76, align: center"]Standard[/TD] [TD="width: 394, colspan: 4, align: center"]Will not Fil LS1 & LS6 fitted with P/N 88958607[/TD] [TD="width: 85, align: center"]12581276[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"]Timing Chain Dampner[/TD] [TD="width: 76, align: center"]LS7 2-stage[/TD] [TD="width: 394, colspan: 4, align: center"]1.1mm thinner than 12588670[/TD] [TD="width: 85, align: center"]12576407[/TD] [TD="width: 143, align: center"]LS1, LS2 & LS6[/TD] [TD="width: 76, align: center"]1X Camshaft Gear[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]3-bolt design; uses (3) bolts P/N 12556127[/TD] [TD="width: 85, align: center"]12586481[/TD] [TD="width: 143, align: center"]LS1, LS2 & LS6[/TD] [TD="width: 76, align: center"]4X Camshaft Gear[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]3-bolt design; uses (3) bolts P/N 12556127[/TD] [TD="width: 85, align: center"]12585994[/TD] [TD="width: 143, align: center"]L92 - Combination Cam gear and VVT activator[/TD] [TD="width: 76, align: center"]4X Camshaft Gear[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]1-bolt design; use P/N 12588151[/TD] [TD="width: 85, align: center"]12556582[/TD] [TD="width: 143, align: center"]All Non LS7[/TD] [TD="width: 76, align: center"]Crankshaft Gear[/TD] [TD="width: 76, align: center"]Standard[/TD] [TD="width: 394, colspan: 4, align: center"]Works with 12576407 and 12586481 cam sprockets[/TD] [TD="width: 85, align: center"]12581278[/TD] [TD="width: 143, align: center"]LS7[/TD] [TD="width: 76, align: center"]Crankshaft Gear[/TD] [TD="width: 76, align: center"]LS7 2-stage[/TD] [TD="width: 394, colspan: 4, align: center"]Works with 12576407 and 12586481 cam sprockets[/TD] [TD="width: 85, align: center"]12586482[/TD] [TD="width: 143, align: center"]All LS[/TD] [TD="width: 76, align: center"]Timing Chain [/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]Fits all LS 1997-2008[/TD] [TD="width: 85, align: center"]12585997[/TD] [TD="width: 143, align: center"]L92 & LS3[/TD] [TD="width: 76, align: center"]Timing Chain Tensioner[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]Includes retainer and bolts[/TD] [TD="width: 85, align: center"]12556127[/TD] [TD="width: 143, align: center"]LS1,LS2,LS6 & LS7[/TD] [TD="width: 76, align: center"]Camshaft Gear bolts[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]For use with 3-bolt (non V.V.T.) cams[/TD] [TD="width: 85, align: center"]12588151[/TD] [TD="width: 143, align: center"]L92[/TD] [TD="width: 76, align: center"]Camshaft Gear bolts[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 394, colspan: 4, align: center"]Combination bolt and valve for variable valve timing - use with 12585994 Camshaft Gear[/TD]
    [/TD] [TD="width: 791, colspan: 6, align: center"]LS Crankshafts
    [TD="width: 85, align: center"]Part #[/TD] [TD="width: 82, align: center"]Application[/TD] [TD="width: 82, align: center"]Material[/TD] [TD="width: 76, align: center"]Reluctor Wheel[/TD] [TD="width: 117, align: center"]Stroke[/TD] [TD="width: 349, align: center"]Description[/TD] [TD="width: 85, align: center"]89017522[/TD] [TD="width: 82, align: center"]97-04 LS1/LS6 & 2005 LS2[/TD] [TD="width: 82, align: center"]Nodular Cast[/TD] [TD="width: 76, align: center"]24X[/TD] [TD="width: 117, align: center"]3.622"[/TD] [TD="width: 349, align: center"]Balanced for 3.898" bore engines[/TD] [TD="width: 85, align: center"]12588612[/TD] [TD="width: 82, align: center"]2006 and up LS2[/TD] [TD="width: 82, align: center"]Nodular Cast[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]3.622"[/TD] [TD="width: 349, align: center"]Balanced for 4.00" bore engines[/TD] [TD="width: 85, align: center"]12568820[/TD] [TD="width: 82, align: center"]LS7[/TD] [TD="width: 82, align: center"]Forged Steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]4.00"[/TD] [TD="width: 349, align: center"]Rebalancing required if LS7 rods and pistons are not used. 2-stage Oil pump[/TD] [TD="width: 85, align: center"]19171619[/TD] [TD="width: 82, align: center"]LS[/TD] [TD="width: 82, align: center"]Forged Steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]4.00"[/TD] [TD="width: 349, align: center"]Rebalancing required if LS7 rods and pistons are not used. Standard wet sump Oil pump[/TD] [TD="width: 85, align: center"]12559353[/TD] [TD="width: 82, align: center"]1997-2005[/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]24X[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]1997-2005 Reluctor Wheel[/TD] [TD="width: 85, align: center"]12586768[/TD] [TD="width: 82, align: center"]2006 and up [/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]2006 and newer Reluctor Wheel[/TD] [TD="width: 85, align: center"]89060436[/TD] [TD="width: 82, align: center"]All LS[/TD] [TD="width: 82, align: center"]Rear Main Seal[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]Rear Main Seal for all LS engines[/TD]
    [TD="width: 701, colspan: 6, align: center"]LSX Crankshafts[/TD] [TD="width: 85, align: center"]Part #[/TD] [TD="width: 100, align: center"]Note[/TD] [TD="width: 82, align: center"]Material[/TD] [TD="width: 76, align: center"]Reluctor Wheel[/TD] [TD="width: 117, align: center"]Stroke[/TD] [TD="width: 241, align: center"]Description[/TD] [TD="width: 85, align: center"]19170388[/TD] [TD="width: 100, align: center"]8-bolt flywheel or flexplate required[/TD] [TD="width: 82, align: center"]4340 premium steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]3.622"[/TD] [TD="width: 241, align: center"]Reguires Balancing[/TD] [TD="width: 85, align: center"]19170389[/TD] [TD="width: 100, align: center"]8-bolt flywheel or flexplate required[/TD] [TD="width: 82, align: center"]4340 premium steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]3.750"[/TD] [TD="width: 241, align: center"]Reguires Balancing[/TD] [TD="width: 85, align: center"]19170390[/TD] [TD="width: 100, align: center"]8-bolt flywheel or flexplate required[/TD] [TD="width: 82, align: center"]4340 premium steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]4.00"[/TD] [TD="width: 241, align: center"]Reguires Balancing[/TD] [TD="width: 85, align: center"]19170391[/TD] [TD="width: 100, align: center"]8-bolt flywheel or flexplate required[/TD] [TD="width: 82, align: center"]4340 premium steel[/TD] [TD="width: 76, align: center"]58X[/TD] [TD="width: 117, align: center"]4.125"[/TD] [TD="width: 241, align: center"]Reguires Balancing[/TD]
    [/TD] [TD="width: 791, align: center"]
    [TD="width: 791, colspan: 6, align: center"]LS Connecting Rods[/TD] [TD="width: 85, align: center"]Part #[/TD] [TD="width: 82, align: center"]Application[/TD] [TD="width: 82, align: center"]Material[/TD] [TD="width: 76, align: center"]Piston Fit[/TD] [TD="width: 117, align: center"]Length[/TD] [TD="width: 349, align: center"]Description[/TD] [TD="width: 85, align: center"]12568734[/TD] [TD="width: 82, align: center"]1997-2004 LS1 & LS6[/TD] [TD="width: 82, align: center"]PM[/TD] [TD="width: 76, align: center"]Press[/TD] [TD="width: 117, align: center"]6.098"[/TD] [TD="width: 349, align: center"]Sold Individually[/TD] [TD="width: 85, align: center"]12617570[/TD] [TD="width: 82, align: center"]2005-2008 LS2 & LS3[/TD] [TD="width: 82, align: center"]PM[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.098"[/TD] [TD="width: 349, align: center"]Sold Individually[/TD] [TD="width: 85, align: center"]12586258[/TD] [TD="width: 82, align: center"]LS7[/TD] [TD="width: 82, align: center"]Titanium[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.067"[/TD] [TD="width: 349, align: center"]Sold Individually[/TD] [TD="width: 85, align: center"]19166964[/TD] [TD="width: 82, align: center"]LSX I-beam[/TD] [TD="width: 82, align: center"]4340 Forged Steel[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.000"[/TD] [TD="width: 349, align: center"]Set of 8, weight matched - NOT compatible with production pistons-for use with LSX Pistons INCLUDES 7/16" 12-point SAE 8740 rod bolts[/TD] [TD="width: 85, align: center"]19166965[/TD] [TD="width: 82, align: center"]LSX I-beam[/TD] [TD="width: 82, align: center"]4340 Forged Steel[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.100"[/TD] [TD="width: 349, align: center"]Set of 8, weight matched - NOT compatible with production pistons-for use with LSX Pistons INCLUDES 7/16" 12-point SAE 8740 rod bolts[/TD] [TD="width: 85, align: center"]19166966[/TD] [TD="width: 82, align: center"]LSX I-beam[/TD] [TD="width: 82, align: center"]4340 Forged Steel[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.125"[/TD] [TD="width: 349, align: center"]Set of 8, weight matched - NOT compatible with production pistons-for use with LSX Pistons INCLUDES 7/16" 12-point SAE 8740 rod bolts[/TD] [TD="width: 85, align: center"]19166967[/TD] [TD="width: 82, align: center"]LSX I-beam[/TD] [TD="width: 82, align: center"]4340 Forged Steel[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.150"[/TD] [TD="width: 349, align: center"]Set of 8, weight matched - NOT compatible with production pistons-for use with LSX Pistons INCLUDES 7/16" 12-point SAE 8740 rod bolts[/TD] [TD="width: 85, align: center"]19166968[/TD] [TD="width: 82, align: center"]LSX I-beam[/TD] [TD="width: 82, align: center"]4340 Forged Steel[/TD] [TD="width: 76, align: center"]Float - Bronze Bushing[/TD] [TD="width: 117, align: center"]6.200"[/TD] [TD="width: 349, align: center"]Set of 8, weight matched - NOT compatible with production pistons-for use with LSX Pistons INCLUDES 7/16" 12-point SAE 8740 rod bolts[/TD] [TD="width: 85, align: center"]11600158 Rod Bolt[/TD] [TD="width: 82, align: center"]LS6[/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]Recommended in Gen III performance engines-Bolts have greater strength than pre-2000 rod bolts- 1 per package[/TD] [TD="width: 85, align: center"]11609825 Rod bolt[/TD] [TD="width: 82, align: center"]LS7[/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]Required for LS7 builds-bolts are stretch to yield and can not be reused - 1 bolt per package[/TD] [TD="width: 85, align: center"]89017573 Rod Bearing[/TD] [TD="width: 82, align: center"]All except LS7/LS9[/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]Connecting Rod Bearing - (1) per rod required[/TD] [TD="width: 85, align: center"]89017811 Rod Bearing[/TD] [TD="width: 82, align: center"]LS7/LS9[/TD] [TD="width: 82, align: center"]-[/TD] [TD="width: 76, align: center"]-[/TD] [TD="width: 117, align: center"]-[/TD] [TD="width: 349, align: center"]Connecting Rod Bearing - (1) per rod required[/TD]
    [/TD]
     
  18. Jun 29, 2015 #18

    spaschke

    spaschke

    spaschke

    Well-Known Member

    Joined:
    Oct 24, 2012
    Messages:
    233
    Likes Received:
    58
    Location:
    Denver, CO
    Great information. Thanks!
    Has anyone blueprinted an LS engine build that would work better than a stock LS engine for an airplane?
     
  19. Jul 7, 2015 #19

    ekimneirbo

    ekimneirbo

    ekimneirbo

    Banned

    Joined:
    Oct 31, 2014
    Messages:
    1,009
    Likes Received:
    324
    Location:
    Deep South
    Here are my thoughts on using an LS vs a traditional smallblock. As always, the type of airplane you wish to use the engine in will
    cause you to want different results from the engine. Ergo...if you want to fly 250mph in a larger airplane, or race one, you may be
    able to utilize more hp than someone wanting to fly 150 mph and do STOL flying. In one case you may wish to use a reduction drive
    to operate the engine at maximum power levels. In the other situation you may wish to remain as light as possible by using direct
    drive at 2700-3200 rpms. At the 2700-3200 rpm range you can build engines that will easily produce 200-250 hp.

    The first major consideration in either case is weight. You can purchase a cast iron Chevy block used for $100. Seems cheap enough,
    but then you must spend about $1000 to verify its condition and remachine it. If cast iron is your choice, you can purchase a "brand
    new" Chevy LS block for about $500. Moving to the aluminum versions, a brand new smallblock Chevy block will set you back about
    $4500. A brand new LS1 block will cost you $1000. I'll say that again...BRAND NEW ALUMINUM BLOCK $1000.
    Choice here seems pretty easy. For about $1700 you get an LS3 block.....and $2700 will get an LS7 Block.

    The very first thing anyone considering an LS Block/engine should do is visit your local performance Chevy dealer and pick up GMs
    High Performance catalog for $5. Its a real bargain.

    Assuming the fact that you can get the LS block so cheaply here are my thoughts on assembling an aero engine.

    First consider the heads. If you are building a 2700-3200 rpm engine, you do not need large intake ports or valves. Virtually any LS1
    head (and a couple of the truck heads with larger combustion chambers will easily do the job. You are only talking about maybe 250 hp
    here, so smaller ports means good port velocity.Also, Remember that these LS1 heads are high performance heads to begin with. Maybe do a little smoothing of the ports and install new valves or guides....at least on the exhaust side.
    A used pair of LS1 heads can EASILY be located for $100 . Smallblock Aluminum Heads are harder to find and will cost you $700-$1000 used.
    So now you have an aluminum block and rebuilt aluminum heads for about $1500.

    Since you are buying a new crankshaft, you may as well buy a crank with a 4 inch stroke. This will cause an increase in swept volume as the
    piston rises and falls and a resultant increase in compression ratio. The crankshaft will cost about the same whether its for a smallblock or
    an LS engine if you buy a quality unit. You can get some really cheap cranks for a smallblock...but this is not the place to use a regrind or
    cheepo.

    You will also have to purchase other similarly priced components no matter which engine you choose. My idea is to run a larger displacement
    383-427 cu in engine (depending on which block you choose). Running the engine at 2700-3200 rpms will allow the cheap LS1 heads to meet someones needs. Used Intake manifolds and throttle bodies are also dirt cheap and will work well. If someone shops wisely, I believe an LS
    engine can be built more inexpensively than an aluminum smallblock or aluminum 4.3 V6.


     
    rv6ejguy likes this.
  20. Jul 7, 2015 #20

    BoeveP51

    BoeveP51

    BoeveP51

    Well-Known Member Lifetime Supporter

    Joined:
    Jan 25, 2008
    Messages:
    97
    Likes Received:
    10
    Location:
    Spring Hill, FL - formerly W. Ossipee, NH
    My choice is an stock crate LS3 engine with an appropriately modified ECU. Nothing crazy or out of the ordinary. Some minor changes here and there, Viola! Marry that engine with an AutoPSRU and go flying. That is what will happen with my P51.
     

Share This Page



arrow_white