AlanC

Hello all,

I've had a new motor built up for my Corvette and I'm trying to calculate the compression ratio.

By my calculations, I'm coming up with a static compression ratio of 11.86:1.
This is higher than I expected because I asked for the motor to be built for around 10.5:1 static so it would run on pump gas.

I was hoping someone could check my math.

Here's the specs:

LS2 block - Not sure what the deck height is, but it was a brand new block

Callies Dragonslayor Crank 4.00" Stroke

Compstar 6.125" LS1 Rods

Custom Diamond Flat-top Pistons:
Bore 4.020"
Comp. Height 1.125"
Effective Volume -1.8cc
Valve Depth Intake .173 Exhaust .107

Cometic Head Gasket (C5317-040, which I believe is 4.13" bore, .040 compressed thickness)

AFR 205 66cc Heads

Thanks in advance!

Alan