sn95_331_GT_ yellow

does anyone know if NPI intake valves will swap into PI heads? i know theyre the same OD, just wondering if the length is the same...

if i can just swap out my valves instead of having to go machine them down .040" ill do that in a heartbeat, my buddies swamped at work so no clue when we can sneak in and do those, we're already b*lls deep into doing the cage lol

thanks guys!

sn95_331_GT_ yellow

nevermind found the answer, can one of the mods delete or lock this?

uberstang1

So what was the answer lol

sn95_331_GT_ yellow

i believe the PI is about .060" longer so no go

nickmckinney

Its a no go, at 060 longer it unloads the lash adjuster way outside of its spec range.

Plus it flows less in the PI head...............