SoCal Diesel Custom Ground 6480 Alternative Fire Order Keyed Duramax Camshaft

SoCal Diesel Custom Ground Alternative Fire Order Camshafts

The camshaft is an integral part of your engines breathing characteristics. The camshaft lobe profiles need to be carefully matched to the rest of the engine components in order to achieve maximum performance for any given application. We have designed profiles to meet many different applications that include Hot Street, dedicated Drag Racing and Sled Pulling. These camshafts will come with keyway.

Extend the life of your crankshaft by changing the firing order of your engine.

The OEM firing order ends with cylinder 3 and begins with cylinders 1 and 2. The result is a 3-1-2 hit to the crankshaft. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal, right where the 3-1-2 hit would stress the crankshaft the most. Coincidence? We think not.

After carefully researching the different firing orders available to a V-8 engine, SoCal Diesel was the first to implement this "Alternative Firing Order" camshaft for the Duramax engine. In moving cylinders 3, 1 and 2 away from each other, we have significantly extended the abuse the crankshaft can withstand.

Swapping a few pins in the wiring harness will insure the ECM sends the injector signal to the correct cylinder. Wiring diagrams and instructions are included with every purchase.

SoCal 6480 Camshaft Benefits:

• Great all around camshaft for the mild to moderate engine builds
• Great street characteristics, and good for towing
• Excellent choice for twin and compound turbocharger applications
• Alternative Fire Order Pattern
• Can easily support 800-1000hp applications

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
• We recommend the use of LLY or later lifters. Do not use LB7 lifters.

The camshaft is an integral part of your engines breathing characteristics. The camshaft lobe profiles need to be carefully matched to the rest of the engine components in order to achieve maximum performance for any given application. We have designed profiles to meet many different applications that include dedicated Drag Racing and Sled Pulling.