Thread: To port or not to port?

Originally Posted by Iceman6669

Gasket match and port the intake side, but do not polish.

Exhaust side you can remove all casting marks and smooth out the valve bowls. On exhaust runners Raise the ceiling a touch but do not exceed the height or the exhaust gasket. Make sure you leave the D shape in the exhaust runner though. Very important. Ive ported a dozen sets or so and guys have seen good results. Its not super hard to do, but it is pretty easy to do it wrong.

I ported my previous set and it looked ok. As for gains I don’t know. My concern with these is that the seats are already 3 angle machined and I don’t have money to do it again if I nick it.