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COMP Cams 20-600-4

Thumpr Hydraulic Flat Tappet Camshaft Lift .486"/.473" Duration 279/297 RPM Range 2000-5800

COMP Cams 20-600-4

249-20-600-4

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COMP Cams 20-600-4 Thumpr Hydraulic Flat Tappet Camshaft Lift .486"/.473" Duration 279/297 RPM Range 2000-5800 $136.99
Thumpr Hydraulic Flat Tappet Camshaft
Lift .486"/.473"
Duration 279/297
RPM Range 2000-5800

COMP Cams 20-600-4 Details

Chrysler 273-360 C.I. 8 CYL. 1964-2000

Hydraulic-(Thumpr™) High performance street, stock converter ok, best with 2000+ converter and gears, choppy/thumping idle.

Specifications:

Exhaust Valve Lift (in.)
0.473
Intake Valve Lift (in.)
0.486
RPM Range
2000-5800
Int. Duration @ .050 in. (Deg)
227
Exh. Duration @ .050 in. (Deg)
241
Int. Duration Advertised (Deg)
279
Exh. Duration Advertised (Deg)
297
Lifter Type
Hydraulic Flat Tappet
Usage
Street/Performance
Engine Make/Size
Mopar 273-360
Advertised Duration
279 int./296 exh.
Advertised Exhaust Duration
296
Advertised Intake Duration
279
Basic Operating RPM Range
2,000-5,800
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
227 int./241 exh.
Exhaust Duration at 050 inch Lift
241
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.473
Grind Number
279TH7
Intake Duration at 050 inch Lift
227
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.486
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.486 int./0.473 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
107
Manufacturer's Part Number:
20-600-4

Thumpr Camshafts are the hottest cams to hit the streets in more than a decade. That's because they give you the big cam sound you're looking for, without the drawbacks. Applying a camshaft design originally created for sports car endurance racing, they incorporate early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap. Best of all, Thumprs will not negatively impact power output or streetability.

Features:
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
  • Best with aftermarket converters and more rear gear


    Thumpr Sound ClipClick to Listen

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

  • Does COMP Cams 20-600-4 fit your vehicle?

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    1969 DODGE DART

    • CC: 4473
    • Liter: 4.5
    • SubModel: GT
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1985-1986 DODGE B350 VAN

    • EngineType: ALL
    • SubModel: ALL

    1971 CHRYSLER NEWPORT

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972-1974 DODGE B300 VAN

    • Liter: 5.2
    • SubModel: MAXI
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PLYMOUTH GTX

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1980 DODGE D300 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1982-1983 DODGE D150 PICKUP

    • CC: 5211
    • Liter: 5.2
    • SubModel: MISER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1974 DODGE D200 PICKUP

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 DODGE CHARGER

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1967 PLYMOUTH VIP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1971-1973 PLYMOUTH FURY

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM SUBURBAN
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969-1971 DODGE DART

    • CC: 5572
    • Liter: 5.6
    • SubModel: SWINGER
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1969-1974 DODGE W200 PICKUP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1986 DODGE RAMCHARGER

    • CC: 5900
    • Liter: 5.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972-1973 DODGE POLARA

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972-1973 DODGE B100 VAN

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 PLYMOUTH BARRACUDA

    • CC: 5572
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1965-1967 DODGE CORONET

    • Liter: 4.5
    • SubModel: 500
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1979 DODGE D400

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE B200 VAN

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1976-1980 PLYMOUTH VOLARE

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975 PLYMOUTH GRAN FURY

    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1973 PLYMOUTH BARRACUDA

    • CC: 5572
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1976-1980 PLYMOUTH VOLARE

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: GTS
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1974 PLYMOUTH SATELLITE

    • CC: 5900
    • Liter: 5.9
    • SubModel: SEBRING PLUS
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1973 DODGE CORONET

    • CC: 5572
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1970 DODGE POLARA

    • Liter: 5.2
    • SubModel: SPECIAL
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975-1976 DODGE ROYAL MONACO

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970-1974 PLYMOUTH DUSTER

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975-1977 PLYMOUTH GRAN FURY

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1982 DODGE D150 PICKUP

    • Liter: 5.9
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1976-1978 PLYMOUTH PB300 VAN

    • Liter: 5.2
    • SubModel: VOYAGER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1971 DODGE POLARA

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1986 DODGE RAMCHARGER

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1971-1973 DODGE D100 PICKUP

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 DODGE D300 PICKUP

    • CC: 5899
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972-1974 DODGE W100 PICKUP

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1978 PLYMOUTH FURY

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 DODGE DART

    • CC: 4473
    • Liter: 4.5
    • SubModel: GTS
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1974 PLYMOUTH BARRACUDA

    • EngineType: ALL
    • SubModel: ALL

    1980 DODGE MIRADA

    • Liter: 5.9
    • SubModel: SPECIAL COUPE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 PLYMOUTH FURY

    • CC: 5212
    • Liter: 5.2
    • SubModel: SPORT SUBURBAN
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969-1970 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: SWINGER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1979-1981 CHRYSLER NEWPORT

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1971-1972 CHRYSLER NEWPORT

    • CC: 5900
    • Liter: 5.9
    • SubModel: ROYAL
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975 PLYMOUTH FURY

    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964-1974 DODGE D100 PICKUP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976-1978 DODGE D100 PICKUP

    • Liter: 5.9
    • SubModel: WARLOCK
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1981-1982 CHRYSLER CORDOBA

    • Liter: 5.2
    • SubModel: LS
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964-1965 PLYMOUTH FURY

    • CC: 4473
    • Liter: 4.5
    • SubModel: BASE
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1981-1982 DODGE D350 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1974 PLYMOUTH PB300 VAN

    • Liter: 5.2
    • SubModel: VOYAGER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976 PLYMOUTH SCAMP

    • Liter: 5.2
    • SubModel: SPECIAL
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1978-1979 DODGE DIPLOMAT

    • Liter: 5.9
    • SubModel: MEDALLION
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1979-1980 DODGE W300 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1977-1978 DODGE MONACO

    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1984-1986 DODGE D100 PICKUP

    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1984-1986 DODGE B250 VAN

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 PLYMOUTH ROAD RUNNER

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975 PLYMOUTH ROAD RUNNER

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969-1970 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: DELUXE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976 DODGE CHARGER

    • Liter: 5.9
    • SubModel: SPORT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 PLYMOUTH FURY

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1974 PLYMOUTH SCAMP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964 PLYMOUTH FURY

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1984-1986 DODGE D100 PICKUP

    • CC: 5211
    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964-1965 DODGE POLARA

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975 PLYMOUTH FURY

    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 DODGE POLARA

    • CC: 5212
    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1978-1981 CHRYSLER LEBARON

    • Liter: 5.2
    • SubModel: MEDALLION
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1970-1971 PLYMOUTH BARRACUDA

    • CC: 5212
    • Liter: 5.2
    • SubModel: GRAN COUPE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975-1976 DODGE MONACO

    • Liter: 5.9
    • SubModel: ROYAL BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1982 DODGE W350 PICKUP

    • CC: 5211
    • Liter: 5.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976 DODGE DART

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1972-1974 DODGE W300 PICKUP

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1979 DODGE D100 PICKUP

    • CC: 5211
    • Liter: 5.2
    • SubModel: WARLOCK II
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976-1978 PLYMOUTH FURY

    • Liter: 5.9
    • SubModel: SALON
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 PLYMOUTH FURY II

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1973 DODGE B100 VAN

    • Liter: 5.9
    • SubModel: SPORTSMAN
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974-1980 PLYMOUTH TRAILDUSTER

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1979 CHRYSLER CORDOBA

    • EngineType: ALL
    • SubModel: 300

    1972 PLYMOUTH FURY

    • Liter: 5.2
    • SubModel: GRAN COUPE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1977 DODGE DIPLOMAT

    • EngineType: ALL
    • SubModel: ALL

    1971 DODGE POLARA

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969-1970 PLYMOUTH BELVEDERE

    • CC: 5212
    • Liter: 5.2
    • SubModel: SATELLITE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 PLYMOUTH BARRACUDA

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975 DODGE DART

    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975-1976 PLYMOUTH GRAN FURY

    • Liter: 5.2
    • SubModel: SPORT
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1971 DODGE MONACO

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1973 PLYMOUTH FURY

    • CC: 5900
    • Liter: 5.9
    • SubModel: SUBURBAN
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1976 DODGE DART

    • Liter: 5.2
    • SubModel: SWINGER SPECIAL
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1975 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: VOYAGER

    1979 DODGE MAGNUM

    • EngineType: ALL
    • SubModel: ALL

    1978-1981 CHRYSLER TOWN & COUNTRY

    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964 DODGE DART

    • Liter: 4.5
    • SubModel: GTS
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1969 PLYMOUTH VALIANT

    • CC: 4473
    • Liter: 4.5
    • SubModel: SIGNET
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1971-1974 DODGE W200 PICKUP

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1977-1978 DODGE W300 PICKUP

    • CC: 5211
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )
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