Correct, dont use the 2V rotating asembly on either head. Since you would be doing a rebuild anyways, choose your pistons accordingly. Do the research on whatever your golas are. Stock 3V pistons run 9.8:1dont use 4v heads on 2v pistons, you will kill the comp
Just looked up, 3v heads are 51 or 52cc chambers and will kill comp on a 2v bottom end also. Need to run them on a flat top to keep the compression up and work able
Plus the 3V piston comes notched for exhaust valve clearance so that might be an issue on a 2V piston, even though there is a slight dish the lip might still hit, just my .02 good luck with what you decide.ok, well it doesn't sound worth it then if it is going to drop my compression significantly. I was mainly looking for gains without building a new motor.
so you think it would be worth putting on the iron block anyways? pretty much get the heads, intake manifold spacers and the logan motorsports parts? would you need headers or would the stock manifold bolt up?Its definantly worth the trouble but it will cost some money