elitesrock2
Well-Known Member
I currently have a 340 with x heads custom ross pistons .655 lift solid roller cam with 1.5 harland roller rockers. What i'm wondering is if the Indy X heads are similiar enough to let me run them vs the stock type x heads some pictures of the pistons types. I don't have a part number off the pistons as i didn't build the engine. and if the indy x heads or other styles were ported and all that what kinda benefits could i see vs the stock style x heads that have been ported heavily