busha61067

iTrader: (3)

Thickness of head gasket on lq4 with 243 heads 9.1 compression gonna spray 300 shot

Tuskyz28

Not sure..... but a LS9 gasket would be the ticket.

busha61067

iTrader: (3)

Gotta figure out the thickness first ha

redtan

iTrader: (5)

LS9s only come but in 1 thickness, which is about .052 compressed

busha61067

iTrader: (3)

I'd like to go thinner if possible

Tuskyz28

Might have to give cometic a call.......

Fry_

How can you possibly know the compression of the motor when you don't know what head gaskets you're using. Also those pistons must have a seriously large dish in the 18-20cc range if your compression is anywhere near 9:1 with 243 heads.

busha61067

iTrader: (3)

I know around what it's going to be. And with a stock gasket that's almost exactly what it will be that's why I want to go thinner to bring a little bit of compression back. I know it want be much but every little bit counts

.boB

iTrader: (1)

Never use head gaskets to adjust compression. The difference is so small that it won't matter.

Use head gaskets to set your quench distance. That will make a huge difference in how the engine runs, where it detonates, and how much power it makes.