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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-CL11-443-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$1,22595
Ships on 10/19/2026
Lowest Price GuaranteeChevrolet Big Block 396-454 c.i. 8 CYL. 1965-1996
- Xtreme Energy Retro-Fit XR294HR Hydraulic Roller Camshaft & Lifter Kit
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Street/strip applications, 10:1+ compression, 3000+ stall, intake, headers, gears.
Lift: .540"/.560"
Duration: 294/300
Lobe Separation Angle: 110°
RPM Range: 2800-6100
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 Kit
BrandCOMP CAMS
Package Height2.6
Package Width2.7
Package Length24.2
Weight16.9 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)248
Cam StyleHydraulic roller tappet
Grind NumberXR294HR
Exh. Duration Advertised (Deg)300
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.54
Int. Duration @ .050 In. (Deg)242
Assembly Lubricant IncludedNo
Basic Operating Rpm Range2,800-6,100
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.54 in (13.716 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)294
Lobe Separation (Deg)110
Rpm Range2800-6100
Lifter StyleHydraulic roller
Advertised Duration294 int./300 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.56
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.540 int./0.560 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.56 in (14.224 mm)
Advertised Intake Duration294
Intake Duration At 050 Inch Lift242
Exhaust Duration At 050 Inch Lift248
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration300
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift242 int./248 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL11-443-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
