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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-CL12-408-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$1,21095
Ships on 09/15/2026
Lowest Price GuaranteeChevy 262-400ci Small Block 1955-98
For engines NOT originally equipped with a hydraulic roller camshaft.
For engines NOT originally equipped with a hydraulic roller camshaft.
- Xtreme Energy Retro-Fit XR258HR Hydraulic Roller Camshaft & Lifter Kit
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Strong torque, good mileage, stock to mildly modified combinations.
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
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 Height2.7
Package Width2.9
Package Length24.25
Weight8.95 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)212
Cam StyleHydraulic roller tappet
Grind NumberXR258HR
Exh. Duration Advertised (Deg)264
Locks IncludedNo
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)206
Assembly Lubricant IncludedNo
Basic Operating Rpm Range1,000-5,000
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)258
Lobe Separation (Deg)110
Rpm Range1000-5000
Lifter StyleHydraulic roller
Advertised Duration258 int./264 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.487
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.487 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.487 in (12.37 mm)
Advertised Intake Duration258
Intake Duration At 050 Inch Lift206
Exhaust Duration At 050 Inch Lift212
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration264
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift206 int./212 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL12-408-8
Package Qty1
Package TypeEA
No Questions
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