COMP Cams Xtreme Energy XE274H Hydraulic Flat Tappet Camshaft Only Lift: .490" /.490" Duration: 274°/286° RPM Range: 1800-6000
249-12-246-3
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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.Very strong mid-range, torque & throttle response, use 2200+ stall converter.
Operating Range: 1800-6000 RPM Duration Advertised: 274° Intake / 286° Exhaust Duration @ .050'' Lift: 230° Intake / 236° Exhaust Valve Lift w/1.5 Rockers: .490'' Intake / .490'' 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
Very strong mid-range torque and throttle response, 2200+ stall.Specifications:
Part TypeAdvertised Duration274 int./286 exh.Advertised Exhaust Duration286Advertised Intake Duration274Basic Operating RPM Range1,800-6,000Cam StyleHydraulic flat tappetComputer-Controlled CompatibleNoDuration at 050 inch Lift230 int./236 exh.Engine Make/SizeChevy Small Block (262-400)Exh. Duration @ .050 in. (Deg)236Exh. Duration Advertised (Deg)286Exhaust Duration at 050 inch Lift236Exhaust Valve Lift0.49 in (12.446 mm)Exhaust Valve Lift with Factory Rocker Arm Ratio (0.49Grind NumberCS XE274H-10Int. Duration @ .050 in. (Deg)230Int. Duration Advertised (Deg)274Intake Duration at 050 inch Lift230Intake Valve Lift0.487 in (12.37 mm)Intake Valve Lift with Factory Rocker Arm Ratio (i0.49Lifter TypeHydraulic Flat TappetLobe Separation (Deg)110Package Depth24.50Package Height2.80Package Width2.70Part CategoryPerformance PartsQuantitySold individuallyRPM Range1800-6000Shipping Weight8.78UsageStreet/PerformanceValve Lift with Factory Rocker Arm Ratio0.490 int./0.490 exh.Valve Springs RequiredYesVendor Part Number12-246-3 - Overview
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