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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK01-416-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$1,13195
Ships on Oct 28, 2026
Lowest Price GuaranteeCurrently Unavailable
This product is currently not available. Please call customer service for assistance at 1-800-345-4545.
Chevrolet Gen VI Big Block 454ci & 502 c.i. 8 CYL. 1996-1999
- Xtreme Energy™ XR276HR Hydraulic Roller Camshaft Small Kit
- Great for high performance street machines, needs intake, headers, lower gears and 2000+ stall
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Great for high performance street machines, needs intake, headers, lower gears and 2000+ stall.
Lift: .510"/.510"
Duration: 276/282
Lobe Separation Angle: 110°
RPM Range: 1900-5600
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 Kit
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight21.0 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic roller tappet
Grind NumberXR276HR
Exh. Duration Advertised (Deg)282
Locks IncludedNo
Engine Make/SizeChevy Gen VI 454
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.51
Int. Duration @ .050 In. (Deg)224
Assembly Lubricant IncludedYes
Basic Operating Rpm Range1,900-5,600
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)276
Lobe Separation (Deg)110
Rpm Range1900-5600
Lifter StyleHydraulic roller
Advertised Duration276 int./282 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.510 int./0.510 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration276
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift230
Timing Chain StyleSingle roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration282
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./230 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberSK01-416-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
