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COMP Cams CL20-602-4

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

COMP Cams CL20-602-4

249-CL20-602-4

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COMP Cams CL20-602-4 Big Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .507"/.494" Duration 295/312 RPM Range 2500-6400 $224.99
Big Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .507"/.494"
Duration 295/312
RPM Range 2500-6400

COMP Cams CL20-602-4 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
Gaskets Included
No
Advertised Duration
291 int./312 exh.
Advertised Exhaust Duration
312
Advertised Intake Duration
295
Assembly Lubricant Included
Yes
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
Lifter Style
Hydraulic flat tappet
Lifters Included
Yes
Locks Included
No
Pushrods Included
No
Quantity
Sold as a kit
Retainers Included
No
Rocker Arms Included
No
Timing Chain and Gears Included
No
Valve Lift with Factory Rocker Arm Ratio
0.507 int./0.494 exh.
Valve Springs Included
No
Valve Springs Required
Yes
Valve Stem Seals Included
No
Lobe Separation (Deg)
107
Manufacturer's Part Number:
CL20-602-4

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 CL20-602-4 fit your vehicle?

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    1978-1981 CHRYSLER LEBARON

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

    1975-1976 PLYMOUTH GRAN FURY

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

    1966-1968 DODGE CHARGER

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

    1975 PLYMOUTH DUSTER

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

    1974-1979 DODGE CB300 VAN

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

    1974 DODGE B100 VAN

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

    1964-1965 PLYMOUTH FURY

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

    1968 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: 440
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1977-1979 DODGE D300 PICKUP

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

    1980 DODGE D300 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1979 DODGE D400

    • EngineType: ALL
    • SubModel: ALL

    1974 DODGE CHALLENGER

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

    1971 DODGE DART

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

    1971 DODGE B200 VAN

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

    1974-1979 DODGE RAMCHARGER

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

    1976-1977 PLYMOUTH VOLARE

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

    1976-1978 PLYMOUTH PB100 VAN

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

    1969 PLYMOUTH VALIANT

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

    1970 PLYMOUTH SATELLITE

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

    1983 DODGE DIPLOMAT

    • Liter: 5.2
    • Aspiration: N
    • SubModel: SALON
    • Engine Vin: S
    • 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 )

    1975-1976 DODGE D300 PICKUP

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

    1974 PLYMOUTH VALIANT

    • CC: 5212
    • Liter: 5.2
    • SubModel: BROUGHAM
    • 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 PLYMOUTH ROAD RUNNER

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

    1981-1986 DODGE D250 PICKUP

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

    1975-1976 DODGE W300 PICKUP

    • CC: 5211
    • Liter: 5.2
    • SubModel: CUSTOM
    • 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 )

    1972-1974 DODGE D300 PICKUP

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

    1964-1967 DODGE DART

    • Liter: 4.5
    • SubModel: 270
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1969-1970 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: 440
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976-1977 PLYMOUTH VOLARE

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

    1974 DODGE DART

    • EngineType: ALL
    • SubModel: SPORT 360

    1976 PLYMOUTH DUSTER

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

    1974 DODGE D100 PICKUP

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

    1971 CHRYSLER NEWPORT

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

    1964-1974 DODGE W300 PICKUP

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

    1971 DODGE DART

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

    1975-1976 DODGE CORONET

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

    1969-1974 DODGE CHARGER

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

    1964 DODGE 330

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

    1972-1973 DODGE CHARGER

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

    1969-1970 DODGE CORONET

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

    1979 DODGE D450

    • EngineType: ALL
    • SubModel: ALL

    1975-1980 DODGE RAMCHARGER

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

    1981 DODGE D450

    • EngineType: ALL
    • SubModel: ALL

    1984-1986 DODGE D100 PICKUP

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

    1972 CHRYSLER NEWPORT

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

    1984-1986 DODGE DIPLOMAT

    • EngineType: ALL
    • SubModel: ALL

    1968 DODGE DART

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

    1971-1973 DODGE D100 PICKUP

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

    1976-1980 DODGE ASPEN

    • 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 )

    1971 PLYMOUTH FURY

    • 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 )

    1977-1978 DODGE MONACO

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

    1971 DODGE W300 PICKUP

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

    1968 PLYMOUTH ROAD RUNNER

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

    1977 DODGE ROYAL MONACO

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

    1985-1986 DODGE D150 PICKUP

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

    1974 DODGE CORONET

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

    1969 DODGE DART

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

    1967-1968 DODGE POLARA

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

    1976 PLYMOUTH VALIANT

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

    1970-1973 DODGE CHALLENGER

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

    1975-1977 DODGE CHARGER

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

    1973-1974 DODGE DART

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

    1969-1970 DODGE POLARA

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

    1964-1974 DODGE W100 PICKUP

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

    1980 PLYMOUTH PB200 VAN

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

    1969 DODGE CHARGER

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

    1982 DODGE W350 PICKUP

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

    1979-1980 CHRYSLER NEW YORKER

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

    1964-1968 PLYMOUTH BELVEDERE

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

    1972-1974 DODGE B200 VAN

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

    1971 PLYMOUTH SATELLITE

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

    1965-1968 PLYMOUTH SATELLITE

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

    1982 DODGE D150 PICKUP

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

    1976-1977 PLYMOUTH VOLARE

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

    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 )

    1980-1983 DODGE MIRADA

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

    1975 PLYMOUTH DUSTER

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

    1972-1974 DODGE B200 VAN

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

    1968 DODGE CORONET

    • CC: 4473
    • Liter: 4.5
    • SubModel: 440
    • CUI: 273
    • EngineType: V8 ( 4.5 L / 273 )

    1969 DODGE DART

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

    1968 PLYMOUTH ROAD RUNNER

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

    1974 DODGE M300 (CHASSIS)

    • CC: 5212
    • Liter: 5.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976 PLYMOUTH SCAMP

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

    1975 PLYMOUTH SCAMP

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

    1974 DODGE CORONET

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

    1975 DODGE CORONET

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

    1982 DODGE W350 PICKUP

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

    1976 DODGE DART

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

    1964-1967 DODGE W200 PICKUP

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

    1972-1974 DODGE B200 VAN

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

    1975 DODGE CORONET

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

    1969 DODGE DART

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

    1971 DODGE B100 VAN

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