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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-600-4
Thumpr Hydraulic Flat Tappet Camshaft Lift .498"/.483" Duration 279/297 RPM Range 1800 to 5600
$30995
Ships on Sep 15, 2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96
- Thumpr Hydraulic Flat Tappet Camshaft
- 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, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
Lift .498"/.483"
Duration 279/297
RPM Range 1800 to 5600
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 Height2.7
Package Width2.9
Package Length23.9
Weight10.87 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)241
Cam StyleHydraulic flat tappet
Grind Number279TH7
Exh. Duration Advertised (Deg)297
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.498
Int. Duration @ .050 In. (Deg)227
Basic Operating Rpm Range1,800-5,600
Intake Valve Lift0.498 in (12.649 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)279
Lobe Separation (Deg)107
Rpm Range1800-5600
Advertised Duration279 int./296 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.483
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.498 int./0.483 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lift0.483 in (12.268 mm)
Advertised Intake Duration279
Intake Duration At 050 Inch Lift227
Exhaust Duration At 050 Inch Lift241
Advertised Exhaust Duration296
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift227 int./241 exh.
Valve Springs RequiredYes
Vendor Part Number11-600-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
