COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Only Lift: .477" /.480" Duration: 268°/280° RPM Range: 1600-5800
249-12-242-2
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Chevy 262-400ci Small Block 1955-98
*Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.Great for street machines, largest cam for stock converter.
Operating Range: 1600-5800 RPM Duration Advertised: 268° Intake / 280° Exhaust Duration @ .050'' Lift: 224° Intake / 230° Exhaust Valve Lift w/1.5 Rockers: .477'' Intake / .480'' Exhaust Lobe Separation Angle: 110° 265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Great for street machines, largest cam for stock converter, better with 2000+ stall.Specifications:
Part TypeAdvertised Duration268 int./280 exh.Advertised Exhaust Duration280Advertised Intake Duration268Basic Operating RPM Range1,600-5,800Cam StyleHydraulic flat tappetComputer-Controlled CompatibleNoDuration at 050 inch Lift224 int./230 exh.Engine Make/SizeChevy Small Block (262-400)Exh. Duration @ .050 in. (Deg)230Exh. Duration Advertised (Deg)280Exhaust Duration at 050 inch Lift230Exhaust Valve Lift0.48 in (12.192 mm)Exhaust Valve Lift with Factory Rocker Arm Ratio (0.48Grind NumberCS XE268H-10Int. Duration @ .050 in. (Deg)224Int. Duration Advertised (Deg)268Intake Duration at 050 inch Lift224Intake Valve Lift0.477 in (12.116 mm)Intake Valve Lift with Factory Rocker Arm Ratio (i0.477Lifter TypeHydraulic Flat TappetLobe Separation (Deg)110Package Depth2.70Package Height24.50Package Width3.00Part CategoryPerformance PartsPart FitmentSemi UniversalQuantitySold individuallyRPM Range1600-5800Shipping Weight8.90UsageStreet/PerformanceValve Lift with Factory Rocker Arm Ratio0.477 int./0.480 exh.Valve Springs RequiredYesVendor Part Number12-242-2 - Overview
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Vehicle Fitment
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Reviews12-242-2 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts is rated out of 5 by 3.
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