Thumpr Hydraulic Flat Tappet Camshaft Lift .510"/.495" Duration 287/305 RPM Range 2000 to 5900
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-11-601-4

Thumpr Hydraulic Flat Tappet Camshaft Lift .510"/.495" Duration 287/305 RPM Range 2000 to 5900

$30995
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Chevy 396-454ci Big Block 1965-96
    Thumpr Hydraulic Flat Tappet Camshaft
    Lift .510"/.495"
    Duration 287/305
    RPM Range 2000 to 5900

  • 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

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


    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
BrandCOMP CAMS
Package Height3.9
Package Width4.8
Package Length24.5
Weight10.97 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)249
Cam StyleHydraulic flat tappet
Grind Number287TH7
Exh. Duration Advertised (Deg)305
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.51
Int. Duration @ .050 In. (Deg)235
Basic Operating Rpm Range2,000-5,900
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)287
Lobe Separation (Deg)107
Rpm Range2000-5900
Advertised Duration287 int./304 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.495
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.510 int./0.495 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lift0.495 in (12.573 mm)
Advertised Intake Duration287
Intake Duration At 050 Inch Lift235
Exhaust Duration At 050 Inch Lift249
Advertised Exhaust Duration304
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift235 int./249 exh.
Valve Springs RequiredYes
Vendor Part Number11-601-4
Package Qty1
Package TypeEA
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