jtaylor16

iTrader: (3)

Just picked up a used cam its a Bullet 234/238 .650/.650 w/ 112 lsa. Im very concerned about the ptv clearance. I plan on running the cam with my ported 241 heads, I know if I deck the heads ill be playing with fire but if I keep the stock deck height and stock head gaskets should I still have enough clearance without having to fly cut the pistons?

3rdCoastPowerSports

iTrader: (5)

i have the same duration @ .050" 234/238 cam in my car with ported 241's,,, When i measured i had .102" PTV clearance intake and .110" PTV clearance exhaust. min should not be less than .080" intake and .100" exhaust... you should be good to go.

bww3588

iTrader: (49)

Nobody can tell you for sure. Every engine is different. I would check it to be sure, if you don't and crash the valves, that's your own fault.

jtaylor16

iTrader: (3)

thanks 3rdcoast, ill prolly clay a piston just to be sure when it goes in

JPH

iTrader: (2)

Good answer and smart idea.