Does anyone know what the compression ratio would be on a stock lq4 with stock 243's?

 

10.4 to 10.5ish

 

Perfect, thanks

 

Are 799's really the same 243's ?

 

Actually closer to 10~10.2 :1 unless you run a thiner head gasket.

 

X2 with stock48 if you make the math an lq4 dish is 8cc's deep and a 243 head is give or take 7 to 8 cc's deep so it puts you rite about CR and an lq9

 

Cool still fine with me lol.

Mitchell, they are the same as long as its the truck head

 

Really? I thought a stock LQ4 had 9.5 CR with the MLS gaskets and the 317's with the 71-72cc combustion chambers, I'd think going from 71cc to 64cc would gain about a full point? But I do know that you know your **** LOL, can you explain where I've been mislead? Out of curiosity?

 

10.26.1 that's with stock 243s with stock 0.51 mls gaskets