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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-413-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$57795
Ships on 10/19/2026
Lowest Price GuaranteeChevrolet Big Block 396-454 c.i. 8 CYL. 1965-1996
- Xtreme Energy Retro-Fit XR264HR Hydraulic Roller Camshaft
Lift: .510"/.510"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
Hydraulic Roller-Daily driver to mild performance, strong torque, good mileage.
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Daily driver to mild performance, strong torque, good mileage.
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.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeCamshaft
BrandCOMP CAMS
Package Height2.8
Package Width2.9
Package Length24.2
Weight11.3 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)218
Cam StyleHydraulic roller tappet
Grind NumberCB XR264HR-10
Exh. Duration Advertised (Deg)270
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.51
Int. Duration @ .050 In. (Deg)212
Basic Operating Rpm Range1,200-5,200
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)264
Lobe Separation (Deg)110
Rpm Range1200-5200
Advertised Duration264 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.510 int./0.510 exh.
QuantitySold individually
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration264
Intake Duration At 050 Inch Lift212
Exhaust Duration At 050 Inch Lift218
Advertised Exhaust Duration270
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift212 int./218 exh.
Valve Springs RequiredYes
Vendor Part Number11-413-8
Package Qty1
Package TypeEA
No Questions
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