


COMP Cams Camshaft Gm6.6L Duramax 246Xd
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
COMP Cams Camshaft Gm6.6L Duramax 246XdMechanical Roller Perfect for mild modifications, optimized fuel mileage and improved torque hp. Good for heavy towing. COMP Cams always recommends checking piston to valve clearance whenever installing a Camshaft. Modern engine design dictates a compact combustion chamber and tight clearances. Tolerance stack or Installation errors can result in interference and failure. COMP recommends . 080" intake and . 120" exhaust minimum piston to valve
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Your COMP Cams Camshaft Gm6.6L Duramax 246Xd orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Reviewed in the United States on December 13, 2025
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