COMP Cams Camshaft CB XM 278H-12 - cca11-240-4

*Xtreme Marine Camshafts* * Extremely wide powerband helps get boat on plane while making maximum horsepower * Work against exhaust systems with restrictive back pressure * Power enhancement helps maintain top end speed for long distances * Intended for applications where low idle speeds are required PartNumber : cca11-240-4 Description : Xtreme Marine Camshaft Title : 11-240-4 CamShaft, CB XM 278H-12 Advertised Exhaust Duration : 292 Advertised Intake Duration : 278 Assembly Lubricant Included : Yes Basic Operating RPM Range : 2,000-6,200 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Cam Type : Hydraulic Flat Tappet Camshaft Gear Attachment : 3-Bolt Camshaft Material : Cast Iron Camshaft Series : Xtreme Marine Engine Family : Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) Exhaust Duration at .050 inch Lift : 237 Exhaust Valve Lift : 0.566 Grind Number : XM278H Intake Duration at .050 Inch Lift : 234 Intake Valve Lift : 0.564 Lifter Style : Hydraulic Flat Tappet Lifters Included : No Lobe Separation : 112 Usage : Marine Valve Springs Required : Yes Cam and Lifter Kit Upgrade : CL11-240-4 K-Kit Upgrade : K11-240-4 SK-Kit Upgrade : SK11-240-4 Exhaust Duration @ .050 in. : 237 Intake Duration @ .050 in. : 234 Intake Valve Lift(in) : 0.564 Lifter Type : Hydraulic Flat Tappet RPM Range : 2000-9000 Exhaust Duration : 292 Exhaust Valve Lift(in) : 0.566 Intake Duration : 278 Engine Components::Camshafts