nitried or cryo

[Alan Roehrich]

Originally Posted by larry asa

Chevy 427

Thanks Bill

Larry,
We run the stuff from Clark Holroyd, and have since 2006. We bought a complete setup, and have not broken a single rocker since. We are going to finally break down and put a new set of rockers on this Winter. I'm running 265# on the seat, and 550# open pressure. We turn as much as 7800 RPM, and make probably 100-150 passes a year, plus dyno time. Clark's stuff is just plain GM.

Are you fully deburring your rockers?

Where are they breaking?