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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-SK01-445-8
Xtreme Marine XM270HR Hydraulic Roller Camshaft Small Kit Lift: .510"/.510" Duration: 270°/276° RPM Range: 1600-5400
$1,13195
Ships on 10/23/2026
Lowest Price GuaranteeChevrolet Gen VI 454 & 502 c.i. 8 CYL. 1996-1999
- Xtreme Marine XM270HR Hydraulic Roller Camshaft Small Kit
- Good for inboard/ outboard pleasure boats, has good idle
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Good for inboard/outboard pleasure boats, has good idle.
Lift: .510"/.510"
Duration: 270°/276°
RPM Range: 1600-5400
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 Height5.2
Package Width10.4
Package Length25.3
Weight20.73 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic roller tappet
Grind NumberXM270HR
Exh. Duration Advertised (Deg)276
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)218
Assembly Lubricant IncludedNo
Basic Operating Rpm Range1,600-5,400
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)112
Rpm Range1600-5400
Lifter StyleHydraulic roller
Advertised Duration270 int./276 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
Valve Springs IncludedNo
UsageMarine
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 Duration270
Intake Duration At 050 Inch Lift218
Exhaust Duration At 050 Inch Lift224
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration276
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift218 int./224 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK01-445-8
Package Qty1
Package TypeEA
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