colonjavier1

I just bought a new block stroked out 331 with reverse dome piston, I'll be using performer rpm heads 2.02 and F 303 cam. My question is what push rod size do I use.

cruisin5268d

Welcome to the forum.

This section is not for asking technical questions and, as such, you will not get much help here.

kirk35

Welcome to the forum!

Your question can only be answered with a pushrod length checker, anything else is just a guess. There are too many variables, has the block been decked? Heads milled? Valve stem height? Head gasket thickness? Base circle of the cam? Minor machining variations in any of these areas can result in tolerance stacking and can make a significant difference in the correct pushrod length.

It's better to measure and have proper valvetrain geometry than to guess at it. Try this http://www.summitracing.com/parts/tfs-9001/overview/

88 orangepeel notch

+1 ^^^

Well said, and welcome to the forum.