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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K01-422-8
Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts
$1,47295
Ships on 09/10/2026
Lowest Price GuaranteeChevrolet Gen VI Big Block 454ci & 502 c.i. 8 CYL. 1996-1999For computer controlled engines
- Xtreme Energy XR288HR Hydraulic Roller Camshaft Complete 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
Best in high performance street and race engines. Needs intake, headers, lower gear, 2600+ stall and programmer.
Lift: .520"/.539"
Duration: 288/294
Lobe Separation Angle: 114°
RPM Range: 2200-6200
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 Height5.0
Package Width10.25
Package Length25.5
Weight27.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)242
Cam StyleHydraulic roller tappet
Grind NumberXR288HR-14
Exh. Duration Advertised (Deg)294
Locks IncludedYes
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.52
Int. Duration @ .050 In. (Deg)236
Assembly Lubricant IncludedNo
Basic Operating Rpm Range2,200-6,200
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.52 in (13.208 mm)
Computer-Controlled CompatibleYes
Int. Duration Advertised (Deg)288
Lobe Separation (Deg)114
Rpm Range2200-6200
Lifter StyleHydraulic roller
Advertised Duration288 int./294 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.539
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.520 int./0.539 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.539 in (13.691 mm)
Advertised Intake Duration288
Outside Diameter Of Outer Spring1.509 in (38.3 mm)
Intake Duration At 050 Inch Lift236
Exhaust Duration At 050 Inch Lift242
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration294
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift236 int./242 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK01-422-8
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
