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The COMP Cams Duramax GM 6.6L 246Xd mechanical roller cam is suited to mild modifications, improving fuel mileage and torque while remaining capable for heavy towing. COMP Cams recommends checking piston-to-valve clearance on modern engines; they suggest a minimum of .080" intake and .120" exhaust clearance to avoid interference. This grind supports practical towing and efficiency upgrades.
COMP Cams Camshaft Gm6.6L Duramax 246Xd
