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Chevy 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 XR252HR-10 Retro-Fit Hydraulic Roller Camshaft
Lift: .472"/.480"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600
Hydraulic Roller-Smallest of the line, good for towing, excellent mileage, smooth idle.
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
Good for mileage and for towing, smooth idle.
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
BrandCOMP CAMS
Package Height2.9
Package Width3.1
Package Length24.2
Weight8.8 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)206
Cam StyleHydraulic roller tappet
Grind NumberCS XR252HR-10
Exh. Duration Advertised (Deg)258
Engine Make/SizeChevy Small Block (262-400)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.472
Int. Duration @ .050 In. (Deg)200
Basic Operating Rpm Range600-4,600
Intake Valve Lift0.472 in (11.989 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)252
Lobe Separation (Deg)110
Rpm Range600-4600
Advertised Duration252 int./258 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.48
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.472 int./0.480 exh.
QuantitySold individually
Exhaust Valve Lift0.48 in (12.192 mm)
Advertised Intake Duration252
Intake Duration At 050 Inch Lift200
Exhaust Duration At 050 Inch Lift206
Advertised Exhaust Duration258
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift200 int./206 exh.
Valve Springs RequiredYes
Vendor Part Number12-407-8
Package Qty1
Package TypeEA
No Questions
No Reviews
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