Wagler Competition Alternate Fire Duramax Camshaft

Part# WCPC6686-1

$975.00 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Wagler Competition Alternate Fire Camshaft

Fits 2001-2016 Silverado/Sierra 2500HD/3500HD Duramax

Part# WCPC6686-(X)

*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))*

*This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.*

Duramax Alternate Fire Camshaft Street. The main reason for modifiying the firing order with the camshaft is to relieve stress on the front portion of the crankshaft. The OEM firing order ends with cylinder #3 and begins with cylinders #1 and #2. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal. With an alternate firing camshaft cylinders 1, 2, and 3 are moved away from each other. This helps extend the abuse the crankshaft can withstand.

Stage 1:

Duramax Alternate Fire Camshaft Street Stage One (No Piston Valve Reliefs Needed) Great replacement for tow, street and mild race.

Stage 2:

Duramax Alternate Fire Camshaft Street Stage Two (.050 Piston Valve Reliefs Needed) Great replacement for street and race.

Note:

Engine Wiring Harness modifications are required due to the new firing order. 

Install Instructions:

LB7 - 2001-2004

LLY - 2004.5-2005

LBZ - 2006-2007

LMM - 2007.5-2010

LML - 2011-2016