Mutha" Thumpr Hydraulic Flat Tappet Camshaft Complete Kit Lift .489"/.476" Duration 287/305 RPM Range 2200 to 6100
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-K12-601-4

Mutha" Thumpr Hydraulic Flat Tappet Camshaft Complete Kit Lift .489"/.476" Duration 287/305 RPM Range 2200 to 6100

$65595
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Chevy 262-400ci Small Block 1958-98
    Mutha' Thumpr Hydraulic Flat Tappet Camshaft Complete Kit
    Lift .489"/.476"
    Duration 287/305
    RPM Range 2200 to 6100

  • Complete Camshaft Kit
  • 3 Grinds To Fit All Of Your Performance Needs
  • Long Exhaust Duration
  • Produces A Powerful Hard-Hitting Exhaust Note
  • Excellent Horsepower Gains And Broad Torque Curve
  • Delivers Real Seat Of The Pants Performance
  • Designed For Use w/Latest In ValveTrain Components
  • 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


    High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough 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 Height5.1
Package Width10.2
Package Length25.4
Weight21.35 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)249
Cam StyleHydraulic flat tappet
Grind Number287TH7
Exh. Duration Advertised (Deg)305
Locks IncludedYes
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.489
Int. Duration @ .050 In. (Deg)235
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,200-6,100
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.489 in (12.421 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)287
Lobe Separation (Deg)107
Rpm Range2200-6100
Lifter StyleHydraulic flat tappet
Advertised Duration287 int./305 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.476
Valve Springs IncludedYes
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.489 int./0.476 exh.
Camshaft Gear Attachment3-bolt
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.476 in (12.09 mm)
Advertised Intake Duration287
Outside Diameter Of Outer Spring1.254 in (31.9 mm)
Intake Duration At 050 Inch Lift235
Exhaust Duration At 050 Inch Lift249
Timing Chain StyleDouble non-roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration305
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift235 int./249 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK12-601-4
Package Qty1
Package TypeEA
No Questions
No Reviews

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