Description
Duramax Alternate Fire Camshaft Street.
Installation Instructions: AF wiring instructions below. Please click the blue links.
LB7 – 2001 – 2004
LLY – 2004.5 – 2005
LBZ – 2006 – 2007
LMM – 2007.5 – 2010
LML – 2011 – 2016
HOW TO ADJUST VALVES
- Rotate the engine and adjust one cylinder at a time
- When the exhaust valves just begin to open, adjust the intake
- When the intake valves are just past maximum lift, adjust the exhaust
- Intake valve lash .012
- Exhaust valve lash .012
