There have been lots of threads on what not to use from 440source


1. I beam rods. They quit selling them because of breakage
2. Rocker arms
3 harmonic balancers. I would not put one on an engine. Never.

Last edited by pittsburghracer; 07/20/18 03:46 PM.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.38@138.67


Livin and lovin life one day at a time