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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-12-246-20
XTREME ENERGY 274H-10 Hydraulic Flat Tappet Camshaft Nitrided Lift .490"/.490" Duration 274°/286° Lobe Angle 110°
$46895
Ships on Sep 04, 2026
Lowest Price GuaranteeChevy 262-400ci Small Block 1955-98
- XTREME ENERGY 274H-10 Hydraulic Flat Tappet Camshaft Nitrided
Lift .490"/.490"
Duration 274°/286°
Lobe Angle 110°
HYDRAULIC - Very strong mid-range torque and throttle response, 2200+ stall.
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. Nitrided.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Part TypeCamshaft
BrandCOMP CAMS
Package Height3.0
Package Width3.1
Package Length24.2
Weight8.75 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)236
Cam StyleHydraulic flat tappet
Grind NumberXE274H
Exh. Duration Advertised (Deg)286
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.49
Int. Duration @ .050 In. (Deg)230
Basic Operating Rpm Range1,800-6,000
Intake Valve Lift0.49 in (12.446 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)274
Lobe Separation (Deg)110
Rpm Range1800-6000
Advertised Duration274 int./286 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.49
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.490 int./0.490 exh.
QuantitySold individually
Exhaust Valve Lift0.49 in (12.446 mm)
Advertised Intake Duration274
Intake Duration At 050 Inch Lift230
Exhaust Duration At 050 Inch Lift236
Advertised Exhaust Duration286
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift230 int./236 exh.
Valve Springs RequiredYes
Vendor Part Number12-246-20
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
