Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts
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COMP CAMSPART NUMBER: 249-K11-413-8

Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts

$1,62495
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Chevrolet Big Block 396-454 c.i. 8 CYL. 1965-1996
    Xtreme Energy Retro-Fit XR264HR-10 Hydraulic Roller Camshaft Complete Kit
    Lift: .510"/.510"
    Duration: 264/270
    Lobe Separation Angle: 110°
    RPM Range: 1200-5200

  • Produces Better Throttle Response
  • Produces Top Engine Horsepower
  • Delivers Increased Engine Vacuum
  • 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


    Daily driver to mild performance, strong torque, good mileage.

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 Height5.2
Package Width10.3
Package Length25.3
Weight30.23 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)218
Cam StyleHydraulic roller tappet
Grind NumberXR264HR
Exh. Duration Advertised (Deg)270
Locks IncludedYes
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.51
Int. Duration @ .050 In. (Deg)212
Assembly Lubricant IncludedNo
Basic Operating Rpm Range1,200-5,200
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)264
Lobe Separation (Deg)110
Rpm Range1200-5200
Lifter StyleHydraulic roller
Advertised Duration264 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.510 int./0.510 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration264
Outside Diameter Of Outer Spring1.525 in (38.7 mm)
Intake Duration At 050 Inch Lift212
Exhaust Duration At 050 Inch Lift218
Timing Chain StyleDouble roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration270
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift212 int./218 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK11-413-8
Package Qty1
Package TypeEA
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