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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-238-3
Xtreme Energy 262H Hydraulic Flat Tappet Camshaft Only Lift: .504" /.510" Duration: 262°/270° RPM Range: 1300-5600
$29795
Ships on Sep 15, 2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96
- Xtreme Energy 262H Hydraulic Flat Tappet Camshaft Only
Lift: .504''/.510''
Duration: 262°/270°
RPM Range: 1300-5600
*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16' wide x 7/64' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.
Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.
| Operating Range: | 1300-5600 RPM |
| Duration Advertised: | 262° Intake / 270° Exhaust |
| Duration @ .050' Lift: | 218° Intake / 224° Exhaust |
| Valve Lift w/1.7 Rockers: | .504' Intake / .510' Exhaust |
| Lobe Separation Angle: | 110° |
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.
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 Height2.75
Package Width2.87
Package Length24.5
Weight10.7 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic flat tappet
Grind NumberCB XE262H-10
Exh. Duration Advertised (Deg)270
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.504
Int. Duration @ .050 In. (Deg)218
Basic Operating Rpm Range1,300-5,600
Intake Valve Lift0.504 in (12.802 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)262
Lobe Separation (Deg)110
Rpm Range1300-5600
Advertised Duration262 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.504 int./0.510 exh.
QuantitySold individually
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration262
Intake Duration At 050 Inch Lift218
Exhaust Duration At 050 Inch Lift224
Advertised Exhaust Duration270
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift218 int./224 exh.
Valve Springs RequiredYes
Vendor Part Number11-238-3
Package Qty1
Package TypeEA
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