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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-20-600-4
Thumpr Hydraulic Flat Tappet Camshaft Lift .486"/.473" Duration 279/297 RPM Range 2000-5800
$30995
3 left in stock
Ships on Sep 14, 2026
Lowest Price GuaranteeChrysler 273-360 C.I. 8 CYL. 1964-2000
- Thumpr Hydraulic Flat Tappet Camshaft
Lift .486"/.473"
Duration 279/297
RPM Range 2000-5800
Hydraulic-(Thumpr™) High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping 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 Height2.7
Package Width3.0
Package Length24.3
Weight9.7 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)241
Cam StyleHydraulic flat tappet
Grind Number279TH7
Exh. Duration Advertised (Deg)297
Engine Make/SizeMopar 273-360
Intake Valve Lift With Factory Rocker Arm Ratio (I0.486
Int. Duration @ .050 In. (Deg)227
Basic Operating Rpm Range2,000-5,800
Intake Valve Lift0.486 in (12.344 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)279
Lobe Separation (Deg)107
Rpm Range2000-5800
Advertised Duration279 int./296 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.473
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.486 int./0.473 exh.
QuantitySold individually
Exhaust Valve Lift0.473 in (12.014 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 Number20-600-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
