COMP Cams Camshaft CB XM 284HR-12 - cca11-451-8

*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 : cca11-451-8 Description : Xtreme Marine Camshaft Title : 11-451-8 CamShaft, CB XM 284HR-12 Advertised Exhaust Duration : 290 Advertised Intake Duration : 284 Assembly Lubricant Included : No Basic Operating RPM Range : 2,200-5,800 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Cam Type : Hydraulic Roller Camshaft Gear Attachment : 3-Bolt Camshaft Material : Austempered Ductile Iron Camshaft Series : Xtreme Marine Engine Family : Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) Exhaust Duration at .050 inch Lift : 236 Exhaust Valve Lift : 0.547 Grind Number : XM284HR Intake Duration at .050 Inch Lift : 230 Intake Valve Lift : 0.547 Lifter Style : Hydraulic Roller Lifters Included : No Lobe Separation : 112 Usage : Marine Valve Springs Required : Yes Cam and Lifter Kit Upgrade : CL11-451-8 K-Kit Upgrade : K11-451-8 SK-Kit Upgrade : SK11-451-8 Lifter Type : Hydraulic Roller Exhaust Duration @ .050 in. : 236 RPM Range : 2000-9000 Intake Duration : 284 Intake Valve Lift(in) : 0.547 Exhaust Duration : 290 Exhaust Valve Lift(in) : 0.547 Intake Duration @ .050 in. : 230 Engine Components::Camshafts