Xtreme Energy 250H Hydraulic Flat Tappet Camshaft Small Kit Lift: .470"/.475" Duration: 250°/260° RPM Range: 600 to 4800
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-SK11-230-3

Xtreme Energy 250H Hydraulic Flat Tappet Camshaft Small Kit Lift: .470"/.475" Duration: 250°/260° RPM Range: 600 to 4800

$40295
ShippingShips on 10/23/2026
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Chevy 396-454ci Big Block 1965-96
    Xtreme Energy 250H Hydraulic Flat Tappet Camshaft Small Kit
    Lift: .470"/.475"
    Duration: 250°/260°
    RPM Range: 600 to 4800

  • Very strong torque, excellent mileage, smooth idle

    Installation Note: Stock springs cannot be used.

    Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572


    Very strong torque, excellent mileage, 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 Kit
BrandCOMP CAMS
Package Height5.2
Package Width10.3
Package Length25.5
Weight19.8 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)272
Cam StyleHydraulic flat tappet
Grind NumberCB XE250H-10
Exh. Duration Advertised (Deg)260
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-454)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.47
Int. Duration @ .050 In. (Deg)206
Assembly Lubricant IncludedYes
Basic Operating Rpm Range600-4,800
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.47 in (11.938 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)250
Lobe Separation (Deg)110
Rpm Range600-4800
Lifter StyleHydraulic flat tappet
Advertised Duration250 int./260 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.475
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.470 int./0.475 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lift0.475 in (12.065 mm)
Advertised Intake Duration250
Intake Duration At 050 Inch Lift206
Exhaust Duration At 050 Inch Lift212
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration260
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift206 int./212 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberSK11-230-3
Package Qty1
Package TypeEA
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