Duramax camshaft keyway service

The cleaning is the responsibility of the customer. The service does not include crack checking, maganfluxing, or any viability check on the units themselves, and that's the responsibility of the customer.

It will take 2-4 weeks to perform the work.

For shipping to Alaska or Hawaii, please call us for pricing.

Don't let a weak factory cam key destroy your valvetrain. High-performance builds, stiffer valve springs, and heavy-duty applications put immense rotational stress on the factory camshaft keyway. If it fails, you lose engine timing instantly.

Send your camshaft to the experts at Dave’s Auto Center. Through our specialized mail-in service, we will precision-machine a slightly larger, reinforced keyway into your existing camshaft. We then fit it with a premium oversized key designed to handle massive stress. Build your engine with confidence, knowing your cam timing is locked in for good.

How the Mail-In Service Works:

1. Purchase the Service: Complete your order online.

2. Ship Your Part: Box up your clean camshaft and send it to our facility at Dave’s Auto Center.

3. Precision Machining: We carefully machine the new, larger keyway and custom-fit the upgraded key.

4. Return Shipping: Your fortified camshaft is shipped back to your door, ready to handle the demands of your high-performance build.

Key Benefits:

• Prevents valvetrain damage and loss of engine timing.

• Essential for high-horsepower and upgraded valve spring setups.

• Precision-cut by experienced automotive machinists.

• Heavy-duty oversized key included and fitted.