Description

Features & Benefits:-

* Designed with strength in mind, with over double the strength of the factory & or our competitors shafts. Precision ground from 4140HT steel, gas nitrited & final surface treated.

* Custom tooling was created to provide a countersink relief for the bolt/nut head verses machining away the entire end of the shaft per the factory design.

* Recommended for all M-Eight engines & especially for engines running higher lift camshafts & heavier valvespring pressu