Xtreme Energy Mechanical Roller Camshaft Complete Kit Small Block Chevy 1955-98 Lift: .576"/.582"
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-K12-772-8

Xtreme Energy Mechanical Roller Camshaft Complete Kit Small Block Chevy 1955-98 Lift: .576"/.582"

$1,62495
ShippingShips on 09/14/2026
Lowest PriceLowest Price Guarantee

Chevy 262-400ci Small Block 1955-98
    Xtreme Energy Mechanical Roller Camshaft Complete Kit
    Small Block Chevy 1955-98
  • Lift: .576"/.582"
  • Duration: 286°/292°
  • Lobe Separation Angle: 110°
  • RPM Range: 3000-7000

    *Note: In order to use these camshafts in 1955-57 265ci blocks, it is necessary to machine a small groove in the rear main journal of the cam to allow oil flow to the top of the engine.

    **Note: Requires thrust button & wear plate.

    Good in weekend warrior with 3000 or more stall. Needs good intake and exhaust with low gears.

    Operating Range:3000-7000 RPM
    Duration Advertised:286° Intake / 292° Exhaust
    Duration @ .050' Lift:248° Intake / 254° Exhaust
    Valve Lift w/1.5 Rockers:.576' Intake / .582' Exhaust
    Valve Setting:.016' Intake / .018' Exhaust
    Lobe Separation Angle:110°

    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 in weekend warrior with 3000+ stall. Needs good intake and exhaust with low gears.

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 Width10.4
Package Length25.5
Weight24.25 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)254
Cam StyleMechanical roller tappet
Grind NumberCS XR286 R-10
Exh. Duration Advertised (Deg)292
Locks IncludedYes
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.576
Int. Duration @ .050 In. (Deg)248
Assembly Lubricant IncludedNo
Basic Operating Rpm Range3,000-7,000
Pushrods IncludedNo
Gaskets IncludedNo
Intake Valve Lash0.016 in (0.406 mm)
Rocker Arms IncludedNo
Intake Valve Lift0.576 in (14.63 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)286
Lobe Separation (Deg)110
Rpm Range3000-7000
Lifter StyleMechanical roller
Advertised Duration286 int./292 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.582
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.576 int./0.582 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lash0.018 in (0.457 mm)
Exhaust Valve Lift0.582 in (14.783 mm)
Advertised Intake Duration286
Outside Diameter Of Outer Spring1.46 in (37.1 mm)
Intake Duration At 050 Inch Lift248
Exhaust Duration At 050 Inch Lift254
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration292
Lifter TypeMechanical Roller
Duration At 050 Inch Lift248 int./254 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK12-772-8
Package Qty1
Package TypeEA
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