Engines and Components› Camshafts and Valvetrain

Industrial Injection

Industrial Injection V8 Duramax Alternate Firing Billet Race Stage 1 Camshaft w/ Key

$1,880.37

SKU: I002 PDM-DMXAFS1

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Industrial Injection PDM-DMXAFS1 is an alternate firing billet race Stage 1 camshaft for Duramax engines. This camshaft improves cylinder balance, reduces harmonics, and increases valvetrain stability. Its alternate firing order extends crankshaft life by redistributing torsional loads. Made from premium billet steel, it offers improved airflow, enhanced combustion efficiency, and a broader powerband. This Stage 1 camshaft supports 1000+hp and requires 130# valve springs. Suitable for high-performance street trucks, towing, and competition builds.

Fitment

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Specifications

BrandIndustrial Injection
Part NumberI002 PDM-DMXAFS1

Videos

1200HP Duramax Engine Build |EP1| Parts Overview

1200HP Duramax Engine Build |EP1| Parts Overview

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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