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COMP Cams 20-602-4

Big Mutha Thumpr Hydraulic Flat Tappet Camshaft Lift .507"/.494" Duration 295/312 RPM Range 2500-6400

COMP Cams 20-602-4

249-20-602-4

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COMP Cams 20-602-4 Big Mutha Thumpr Hydraulic Flat Tappet Camshaft Lift .507"/.494" Duration 295/312 RPM Range 2500-6400 $136.99
Big Mutha Thumpr Hydraulic Flat Tappet Camshaft
Lift .507"/.494"
Duration 295/312
RPM Range 2500-6400

COMP Cams 20-602-4 Details

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

Hydraulic-(Big Mutha' Thumpr™) Street/strip, needs 9.5:1 CR , 2800+ stall, intake, gears, and headers, very rough idle.

Specifications:

Exhaust Valve Lift (in.)
0.494
Intake Valve Lift (in.)
0.507
Int. Duration @ .050 in. (Deg)
243
Exh. Duration @ .050 in. (Deg)
257
Int. Duration Advertised (Deg)
295
Exh. Duration Advertised (Deg)
313
Lifter Type
Hydraulic Flat Tappet
RPM Range
2500-6400
Engine Make/Size
Mopar 273-360
Usage
Street/Strip
Advertised Duration
295 int./312 exh.
Advertised Exhaust Duration
312
Advertised Intake Duration
295
Basic Operating RPM Range
2,500-6,400
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
243 int./257 exh.
Exhaust Duration at 050 inch Lift
257
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.494
Grind Number
295TH7
Intake Duration at 050 inch Lift
243
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.507
Quantity
Sold as a kit
Valve Lift with Factory Rocker Arm Ratio
0.507 int./0.494 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
107
Manufacturer's Part Number:
20-602-4

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 20-602-4 fit your vehicle?

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    1978 DODGE MAGNUM

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

    1981 DODGE D400

    • EngineType: ALL
    • SubModel: ALL

    1976 DODGE D100 PICKUP

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

    1965-1967 DODGE CORONET

    • Liter: 5.2
    • SubModel: 500
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976-1977 PLYMOUTH PB300 VAN

    • Liter: 5.9
    • SubModel: VOYAGER EX WAGON
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1977 DODGE W100 PICKUP

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

    1968 PLYMOUTH FURY I

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

    1983 DODGE DIPLOMAT

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

    1968 DODGE DART

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

    1971 DODGE DART

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

    1974 PLYMOUTH PB200 VAN

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

    1968 DODGE DART

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

    1971 DODGE B300 VAN

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

    1973 DODGE CORONET

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

    1975-1977 PLYMOUTH GRAN FURY

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

    1976-1977 PLYMOUTH PB200 VAN

    • Liter: 5.9
    • SubModel: VOYAGER EX WAGON
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1976-1977 PLYMOUTH PB200 VAN

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

    1978-1982 DODGE DIPLOMAT

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

    1968 PLYMOUTH FURY

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

    1977-1978 DODGE W300 PICKUP

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

    1971 DODGE D200 PICKUP

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

    1969 DODGE DART

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

    1970 PLYMOUTH BELVEDERE

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

    1967-1968 DODGE CHARGER

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

    1968-1969 DODGE D100 PICKUP

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

    1984-1986 PLYMOUTH GRAN FURY

    • EngineType: ALL
    • SubModel: SALON

    1975 PLYMOUTH SCAMP

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

    1968 PLYMOUTH BELVEDERE

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

    1972-1973 DODGE POLARA

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

    1975 PLYMOUTH FURY

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

    1972-1980 DODGE B100 VAN

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

    1971 DODGE DART

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

    1968-1969 DODGE A100 PICKUP

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

    1970 DODGE MONACO

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

    1972-1974 DODGE D200 PICKUP

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

    1970 PLYMOUTH SATELLITE

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

    1972-1974 DODGE W100 PICKUP

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

    1975 PLYMOUTH DUSTER

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

    1974 DODGE DART

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

    1967 DODGE DART

    • Liter: 5.2
    • SubModel: 270
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1964-1965 DODGE POLARA

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

    1968 PLYMOUTH BELVEDERE

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

    1975-1976 DODGE DART

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

    1975-1977 PLYMOUTH GRAN FURY

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

    1974-1979 DODGE CB300 VAN

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

    1968 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: DELUXE
    • 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 )

    1979-1980 DODGE W300 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1976 DODGE CHARGER

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

    1969 DODGE DART

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

    1968 DODGE POLARA

    • CC: 5212
    • Liter: 5.2
    • SubModel: 500
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1973 DODGE CHARGER

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

    1983-1986 DODGE D350 PICKUP

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

    1964 PLYMOUTH VALIANT

    • Liter: 4.5
    • SubModel: 200
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1972-1974 DODGE DART

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

    1976-1977 DODGE ASPEN

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

    1969 PLYMOUTH VALIANT

    • Liter: 5.2
    • SubModel: 100
    • 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 )

    1968 PLYMOUTH SATELLITE

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

    1970 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: CUSTOM
    • 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 )

    1974-1980 DODGE RAMCHARGER

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

    1970-1973 PLYMOUTH FURY II

    • 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: SPORT 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 )

    1968 PLYMOUTH VALIANT

    • CC: 5212
    • Liter: 5.2
    • SubModel: 100
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969 PLYMOUTH BELVEDERE

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

    1971 DODGE B200 VAN

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • 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 )

    1965-1967 DODGE CORONET

    • Liter: 4.5
    • SubModel: 440
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1986 DODGE W150 PICKUP

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

    1975 PLYMOUTH SCAMP

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

    1980 DODGE RD200 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1976 PLYMOUTH VALIANT

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

    1965 PLYMOUTH FURY

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

    1975 DODGE DART

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

    1964-1967 DODGE W300 PICKUP

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

    1968 DODGE DART

    • CC: 5572
    • Liter: 5.6
    • SubModel: 270
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1971-1974 DODGE CORONET

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

    1974 PLYMOUTH SATELLITE

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

    1964 PLYMOUTH FURY

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

    1980-1983 PLYMOUTH GRAN FURY

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

    1978 PLYMOUTH PB300 VAN

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

    1968 PLYMOUTH SATELLITE

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

    1976 PLYMOUTH VALIANT

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

    1972-1980 DODGE B300 VAN

    • 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 )

    1978 CHRYSLER LEBARON

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

    1971-1974 DODGE CHARGER

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

    1969 DODGE DART

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

    1972-1974 DODGE D200 PICKUP

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

    1972 PLYMOUTH FURY

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

    1982 DODGE D150 PICKUP

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

    1969 DODGE CHARGER

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

    1979-1980 PLYMOUTH PB300 VAN

    • EngineType: ALL
    • SubModel: VOYAGER

    1980 PLYMOUTH PB200 VAN

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

    1975 PLYMOUTH FURY

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

    1964-1967 PLYMOUTH VALIANT

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

    1971 DODGE D200 PICKUP

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

    1968 DODGE DART

    • CC: 5212
    • Liter: 5.2
    • SubModel: 270
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )
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