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Dyno numbers in...

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TXFlyGuy

Well-Known Member
Joined
Apr 25, 2012
Messages
2,972
Location
Republic of Texas
Here it is, what we have all been waiting for. The LS376/480 first run baseline dyno data.

I can't post the graph, but the numbers are:

3500 rpm - 275hp 430 lb ft
4000 rpm - 350hp 460 lb ft
4500 rpm - 430hp 480 lb ft
5000 rpm - 475hp 490 lb ft

This was with long tube headers. The dyno shop is warning us to expect up to a 100hp loss when the Mustang style "short stack" exhaust is bolted on.

Max hp registered 525 at 6000 rpm. We are limited to 4500 max.
 
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