Duramax Alternate Firing Billet Race Camshaft w/ Key

Features:

- 1000+hp Capable

- Alternate Firing Order (relieves stress on crankshaft)

- Billet For Ultimate Strength

- Keyed To Prevent Cam Gear Slipping

- "Drop In" Performance Camshaft

- Requires 130# Valve Springs

*Piston to valve clearance should always be measured when installing an aftermarket camshaft.