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COMP Cams CL42-601-5

Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .500"/.486" Duration 286/304 RPM Range 2200-6100

COMP Cams CL42-601-5

249-CL42-601-5

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Ships 12/05/16 if Ordered Today
COMP Cams CL42-601-5 Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .500"/.486" Duration 286/304 RPM Range 2200-6100 $260.99
Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .500"/.486"
Duration 286/304
RPM Range 2200-6100

COMP Cams CL42-601-5 Details

Oldsmobile 260-455 c.i. 8 cyl. 1967-1990

  • Camshaft And Lifter Kit
  • 3 Grinds To Fit All Of Your Performance Needs
  • Long Exhaust Duration
  • Produces A Powerful Hard-Hitting Exhaust Note
  • Excellent Horsepower Gains And Broad Torque Curve
  • Delivers Real Seat Of The Pants Performance
  • Designed For Use w/Latest In ValveTrain Components
  • 1 Year Limited Warranty

  • Specifications:

    Exhaust Valve Lift (in.)
    0.486
    Intake Valve Lift (in.)
    0.500
    Int. Duration @ .050 in. (Deg)
    234
    Exh. Duration @ .050 in. (Deg)
    249
    Int. Duration Advertised (Deg)
    286
    Exh. Duration Advertised (Deg)
    304
    Lifter Type
    Hydraulic Flat Tappet
    Engine Make/Size
    Olds 260-455
    Usage
    Street/Strip
    RPM Range
    2200-6100
    Gaskets Included
    No
    Advertised Duration
    286 int./304 exh.
    Advertised Exhaust Duration
    304
    Advertised Intake Duration
    286
    Assembly Lubricant Included
    Yes
    Basic Operating RPM Range
    2,200-6,100
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    234 int./249 exh.
    Exhaust Duration at 050 inch Lift
    249
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.486
    Grind Number
    287TH7
    Intake Duration at 050 inch Lift
    234
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.5
    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
    0.500 int./0.486 exh.
    Valve Springs Included
    No
    Valve Springs Required
    Yes
    Valve Stem Seals Included
    No
    Lobe Separation (Deg)
    107
    Manufacturer's Part Number:
    CL42-601-5

    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 CL42-601-5 fit your vehicle?

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    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: 442

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 BUICK SKYLARK

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 BUICK LESABRE

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1979 CADILLAC ELDORADO

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 OLDSMOBILE 98

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 CADILLAC SEVILLE

    • Liter: 5.7
    • SubModel: ELEGANTE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1977 BUICK CENTURY

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1978 BUICK RIVIERA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: LXXV ANNIVERSARY EDITION
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 OLDSMOBILE DELTA 88

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1977 PONTIAC GRAND SAFARI

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967-1968 OLDSMOBILE TORONADO

    • EngineType: ALL
    • SubModel: ALL

    1977 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: S
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1989 CADILLAC BROUGHAM

    • EngineType: ALL
    • SubModel: ALL

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1974 BUICK LESABRE

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: LUXUS
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1969 OLDSMOBILE DELTA 88

    • Liter: 7.5
    • Aspiration: N
    • SubModel: CUSTOM
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 BUICK GS

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: HURST

    1987 CHEVROLET CAPRICE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1981 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • SubModel: LS
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1977-1979 BUICK ELECTRA

    • Liter: 6.6
    • SubModel: LIMITED
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1972 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: LT
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969-1971 OLDSMOBILE 442

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 PONTIAC VENTURA

    • Liter: 4.3
    • SubModel: CUSTOM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1977 PONTIAC GRAND LEMANS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: CRUISER
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: HURST

    1973-1974 CHEVROLET LAGUNA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC LEMANS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 OLDSMOBILE VISTA CRUISER

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1976 PONTIAC VENTURA

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1980-1985 OLDSMOBILE DELTA 88

    • Liter: 5.0
    • SubModel: ROYALE BROUGHAM
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1977-1980 BUICK ELECTRA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: LIMITED
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 OLDSMOBILE DELTA 88

    • Liter: 5.7
    • SubModel: ROYALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 OLDSMOBILE DELTA 88

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1986-1989 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: ESTATE WAGON

    1970 OLDSMOBILE DELTA 88

    • CC: 5737
    • Liter: 5.7
    • SubModel: ROYALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 PONTIAC CATALINA

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1977 BUICK LESABRE

    • Liter: 6.6
    • SubModel: CUSTOM SPORT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1980-1981 OLDSMOBILE CUTLASS CRUISER

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1976 OLDSMOBILE TORONADO

    • EngineType: ALL
    • SubModel: CUSTOM

    1972-1974 OLDSMOBILE CUTLASS SUPREME

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975-1977 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: ALL

    1972 BUICK ESTATE WAGON

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 BUICK LESABRE

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1979-1980 BUICK LESABRE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: LIMITED
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 OLDSMOBILE VISTA CRUISER

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 OLDSMOBILE 98

    • Liter: 6.6
    • SubModel: LUXURY
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1977-1979 BUICK ELECTRA

    • Liter: 6.6
    • SubModel: 225
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1973 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 PONTIAC VENTURA

    • Liter: 4.3
    • SubModel: SJ
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1979 OLDSMOBILE CUTLASS SALON

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1980-1981 OLDSMOBILE CUTLASS

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1981 PONTIAC CATALINA

    • Liter: 5.0
    • SubModel: SAFARI
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1986 CHEVROLET CAPRICE

    • Liter: 5.0
    • SubModel: CLASSIC BROUGHAM
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970 OLDSMOBILE F85

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1969 OLDSMOBILE DELTA 88

    • Liter: 7.5
    • Aspiration: N
    • SubModel: CUSTOM
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1986 PONTIAC PARISIENNE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1974 BUICK ELECTRA

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: 225 CUSTOM
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977-1978 PONTIAC GRAND SAFARI

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1967 OLDSMOBILE F85

    • CC: 5409
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1972-1973 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 BUICK RIVIERA

    • Liter: 6.6
    • SubModel: LXXV ANNIVERSARY EDITION
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1968 OLDSMOBILE VISTA CRUISER

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1990 CADILLAC BROUGHAM

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1974 BUICK ELECTRA

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: 225 LIMITED
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1978 CADILLAC SEVILLE

    • Liter: 5.7
    • SubModel: OPERA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981 PONTIAC BONNEVILLE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 OLDSMOBILE F85

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 BUICK SKYLARK

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1981-1984 BUICK ELECTRA

    • Liter: 5.0
    • SubModel: PARK AVENUE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 OLDSMOBILE 442

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1980 BUICK ELECTRA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: PARK AVENUE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 OLDSMOBILE TORONADO

    • EngineType: ALL
    • SubModel: ALL

    1979 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: VISTA CRUISER BROUGHAM
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 OLDSMOBILE CUTLASS SUPREME

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 OLDSMOBILE 98

    • Liter: 7.5
    • SubModel: LUXURY
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1980 OLDSMOBILE CUTLASS SALON

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1973 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: T
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986-1987 BUICK REGAL

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968-1970 OLDSMOBILE DELTA 88

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 OLDSMOBILE TORONADO

    • EngineType: ALL
    • SubModel: ALL

    1975 OLDSMOBILE VISTA CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1977 PONTIAC LEMANS

    • Liter: 5.7
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986-1987 BUICK REGAL

    • Liter: 5.0
    • SubModel: LIMITED
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 PONTIAC CATALINA

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 6.6
    • SubModel: COLONNADE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1972 PONTIAC GRAND SAFARI

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1978 OLDSMOBILE CUTLASS SALON

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1972-1973 BUICK LESABRE

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977-1978 BUICK LESABRE

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )
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