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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-24-602-5
Big Mutha" Thumpr Hydraulic Flat Tappet Camshaft Lift .508"/.478" Duration 279/296 RPM Range 2000-5800
$32595
Ships on 09/15/2026
Lowest Price GuaranteeChrysler 426 Hemi 8 CYL. 1966-1971
- Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft
Lift .508"/.478"
Duration 279/296
RPM Range 2000-5800
Big Mutha' Thumpr™ : Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
426 HEMI; 426; 392; Plymouth; Charger; Challenger; Six Pack; Barracuda; Cuda; Coronet; Wedge; B; RB; 440; 383; HEMI
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very 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 Height2.75
Package Width3.0
Package Length24.5
Weight9.8 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)241
Cam StyleHydraulic flat tappet
Grind Number295TH7
Exh. Duration Advertised (Deg)296
Engine Make/SizeMopar 426 Hemi
Intake Valve Lift With Factory Rocker Arm Ratio (I0.532
Int. Duration @ .050 In. (Deg)227
Basic Operating Rpm Range2,500-6,400
Intake Valve Lift0.508 in (12.903 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)279
Lobe Separation (Deg)107
Rpm Range2000-5800
Advertised Duration295 int./312 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.501
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.532 int./0.501 exh.
QuantitySold individually
Exhaust Valve Lift0.478 in (12.141 mm)
Advertised Intake Duration295
Intake Duration At 050 Inch Lift243
Exhaust Duration At 050 Inch Lift257
Advertised Exhaust Duration312
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift243 int./257 exh.
Valve Springs RequiredYes
Vendor Part Number24-602-5
Package Qty1
Package TypeEA
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