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The COMP Cams Duramax GM 6.6L 270X mechanical roller cam is developed for heavily modified, street/strip engines where maximum horsepower and high rpm capability are priorities; it is not intended for towing use. This grind is optimized for aggressive performance builds and high-RPM operation, and installers should confirm piston-to-valve clearance per COMP Cams recommendations before fitting.
COMP Cams Camshaft GM 6.6L Duramax 270X
