Quote:
Originally Posted by Dragncar
Not sure why special pistons would be needed. My High Ports have a 2.20 valve and generic Butler Ross pistons, 4.155 bore.
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Your butler pistons are based on eheads. If you move the intake .080 you think the valve will still line up with valve pocket in the pistons?
That .080 plus a 2.19 intake valve is like running a 2.270 valve in eheads. How many shelf pistons have pockets for that? Guessing not many.