Features

• Custom tooling was created to provide a countersink relief for the bolt/nut head versus machining away the entire end of the shaft per the factory design
• Recommended for all M-Eight engines and especially for engines running higher lift camshafts and heavier valve spring pressures
• Over double the strength of factory rocker shafts
• Gas nitrated and final surface treated
• Precision ground from 4140HT steel
• Designed with strength in mind
• Made in the USA

Specs