Originally Posted by oldandtired
I have ruined several (solid flat tappet cams) and for no good reason.
New procedure:
Make the upgrade to direct lube lifters.
x2 on ZDP.
x2 on reduced ratio rockers or remove inner valve spring on break in.
This really works....
Dave
Dave you hit the nail on the head, i've got a .590/.595 Bullit flat tappet cam i ran about 10 yrs. ago in my Malibu with a 406 motor. It was/is awsome. I've lost/misplaced the original lifters and i want to put it in my 406" motor for my Prosteet truck. I have a new set of lifters but don't know the quality of the lifters and i don't want too lose this cam. I've got 135 lbs spring pressure on the track 1 heads and i'm almost afraid to fire it up. This cam has seen about 100 passes and is perfect condition from 10 yrs ago. I'm thinking about nitriding the lifters. a cheap process, but not sure yet.
Zip.