Van Guard 23hp V Twin 627cc?

Armilite

Well-Known Member
Joined
Sep 5, 2011
Messages
3,700
Location
AMES, IA USA
Anybody had any dealings with the Van Guard 23hp V Twin (Small Block) 627cc? The GX390 Singles can be Big Bored to Max 100mm. I have a chance to buy one for $75 that says it just needs a Rod, No Head, or Cylinder Damage. If a 460 Single upgraded can make [email protected], a 460 458cc/37hp= 12.4cc to make 1hp. A 627cc/12.4cc = 50.5hp. A Big Bore 794cc/12.4cc = 64hp.

What is Stock Cam lift?

What is the Max they can be Big Bored?

Any Stroker Cranks for them?

SPECIFICATIONS
23.0 Gross HP*
Model
3864
HP (gross) *[email protected]
Engine Displacement (627 cc)
Engine Configuration
Horizontal
Bore (in) 2.97 = 75.438mm ===> Maybe a Big Bore (85mm x 70mm) 794.7cc
Stroke (in)
2.76 = 70.104mm
Weight (77 lbs) =====> Stripped down for Airplane use it should be lighter.
Oil Capacity (oz)
48
Compression Ratio 8.4:1
 
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