what des it take to stroke a 360 to 408?

tonyp1987 said

He told me that he used keith black 10 to 1 pistons with valve reliefs and file fit rings. I think they are forged. when the cam went bad the lifters did too.

Click to expand...

You really dont have to add additive except for the first 20 minute run it, i used Comp Cams break in oil for the breakin on the cam then I changed the oil and am running Valvoline VR1 racing oil which has zddp already in it. but you do IMO need the zddp with a flat tappet cam, not so with a roller.