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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-CL11-461-8
Xtreme Marine XM308HR Retro-Fit Hydraulic Roller Camshaft & Lifter Kit Lift .575"/.575" Duration 308°/314° RPM Range 3500-6500
$1,22595
Ships on 10/23/2026
Lowest Price GuaranteeChevrolet 396-454 c.i. 8 CYL. 1965-1996 Retro-Fit
- Xtreme Marine XM308HR Retro-Fit Hydraulic Roller Camshaft & Lifter Kit
- Xtreme Marine Camshaft
- 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
Good in jet boat with B impeller with 10:1+ compression, running river drags or bracket racing.
Lift .575"/.575"
Duration 308°/314°
RPM Range 3500-6500
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 Height3.0
Package Width8.5
Package Length26.5
Weight17.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)260
Cam StyleHydraulic roller tappet
Grind NumberXM308HR
Exh. Duration Advertised (Deg)314
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.575
Int. Duration @ .050 In. (Deg)254
Assembly Lubricant IncludedYes
Basic Operating Rpm Range3,500-6,500
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.575 in (14.605 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)308
Lobe Separation (Deg)112
Rpm Range3500-6500
Lifter StyleHydraulic roller
Advertised Duration308 int./314 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.575
Valve Springs IncludedNo
UsageOEM
Valve Lift With Factory Rocker Arm Ratio0.575 int./0.575 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.575 in (14.605 mm)
Advertised Intake Duration308
Intake Duration At 050 Inch Lift254
Exhaust Duration At 050 Inch Lift260
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration314
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift254 int./260 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL11-461-8
Package Qty1
Package TypeEA
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