Hey guys can anyone tell me what the static compression would be for P72-00 JDM GSR pistons in a LS block with 89mm ls crank and Ls rods?

I went on 3 different sites and i keep getting different answers.

 

depends if block or head have been surfaced.

 

Lets say nothing was shaved. Is the LS block a .20 or a .30 piston to deck clearence?

 

Lets not say, lets actually check , then you will have a useful compression instead of a guess based off of "just saying".

 

Oh no the block was never decked and was checked with a straight edge. The head is still on the car still and was never milled to our knowledge. I am over 1600km from home and im trying to decide on what pistons to get. Im tring to figure out a static compression im looking for a 10.5:1 ratio.

 

ttt

 

So im guessing 10.5 it is ??