SoCal Diesel HD Standard Firing Order Duramax Camshaft (2001-2016)

SoCal Diesel HD Duramax Camshaft

Duramax Camshaft #6480
This is the #3388 cam's big brother, for those looking for the next level in performance.

Requires .050 piston valve pockets.
Works well from idle past 4200 rpm.
Valve Lash .012/.012

SoCal recommends the use of LLY or later lifters. Do not use LB7 lifters


Valve Adjustment Procedure


1) Rotate the engine and adjust one cylinder at a time.
2) When the exhaust valves just begin to open, adjust the intake.
3) When the intake valves are just past maximum lift, adjust the exhaust.