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COMP Cams K42-600-5

Thumpr Hydraulic Flat Tappet Camshaft Complete Kit Lift .491"/.476" Duration 226/241 RPM Range 2000 to 5800

COMP Cams K42-600-5

249-K42-600-5

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Estimated ship date 12/18/17 if Ordered Today
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COMP Cams K42-600-5 Thumpr Hydraulic Flat Tappet Camshaft Complete Kit Lift .491"/.476" Duration 226/241 RPM Range 2000 to 5800 $508.99
Thumpr Hydraulic Flat Tappet Camshaft Complete Kit
Lift .491"/.476"
Duration 226/241
RPM Range 2000 to 5800

COMP Cams K42-600-5 Details

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

  • Complete Camshaft 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.)
    0.476
    Intake Valve Lift (in.)
    0.491
    RPM Range
    2000-5800
    Int. Duration @ .050 in. (Deg)
    226
    Exh. Duration @ .050 in. (Deg)
    241
    Int. Duration Advertised (Deg)
    278
    Exh. Duration Advertised (Deg)
    296
    Lifter Type
    Hydraulic Flat Tappet
    Engine Make/Size
    Olds 260-455
    Usage
    Street/Hi-Performance
    Gaskets Included
    No
    Advertised Duration
    278 int./296 exh.
    Advertised Exhaust Duration
    296
    Advertised Intake Duration
    278
    Assembly Lubricant Included
    Yes
    Basic Operating RPM Range
    2,000-5,800
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    226 int./241 exh.
    Exhaust Duration at 050 inch Lift
    241
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.476
    Grind Number
    279TH7
    Intake Duration at 050 inch Lift
    226
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.491
    Lifter Style
    Hydraulic flat tappet
    Lifters Included
    Yes
    Locks Included
    Yes
    Outside Diameter of Outer Spring (in.)
    1.437
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    Yes
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Double roller
    Valve Lift with Factory Rocker Arm Ratio
    0.491 int./0.476 exh.
    Valve Springs Included
    Yes
    Valve Springs Required
    Yes
    Valve Stem Seals Included
    Yes
    Lobe Separation (Deg)
    107
    Manufacturer's Part Number:
    K42-600-5

    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 K42-600-5 fit your vehicle?

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    1971 OLDSMOBILE CUTLASS

    • CC: 5737
    • Liter: 5.7
    • SubModel: S
    • 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 )

    1979 CADILLAC ELDORADO

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

    1975-1977 OLDSMOBILE CUTLASS SUPREME

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

    1974 BUICK ELECTRA

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

    1977 BUICK REGAL

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

    1975 OLDSMOBILE VISTA CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1981-1984 BUICK ELECTRA

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

    1977 PONTIAC LEMANS

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

    1985 BUICK LESABRE

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

    1977-1978 BUICK LESABRE

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

    1982-1984 OLDSMOBILE CUTLASS CALAIS

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

    1967 OLDSMOBILE DELTA 88

    • CC: 6966
    • Liter: 7.0
    • SubModel: HOLIDAY
    • CUI: 425
    • EngineType: V8 ( 7.0 L / 425 )

    1977 BUICK LESABRE

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

    1986 PONTIAC PARISIENNE

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

    1981-1985 BUICK LESABRE

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

    1974 OLDSMOBILE DELTA 88

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

    1980-1981 OLDSMOBILE CUTLASS SUPREME

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

    1977-1979 OLDSMOBILE DELTA 88

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

    1978-1980 OLDSMOBILE DELTA 88

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

    1976-1977 CADILLAC SEVILLE

    • EngineType: ALL
    • SubModel: ALL

    1968-1971 OLDSMOBILE DELTA 88

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

    1973-1974 CHEVROLET LAGUNA

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

    1978-1979 OLDSMOBILE CUTLASS

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

    1979-1980 BUICK RIVIERA

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

    1983-1985 BUICK RIVIERA

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

    1969 OLDSMOBILE DELTA 88

    • CC: 5737
    • Liter: 5.7
    • SubModel: CUSTOM
    • 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 )

    1979 OLDSMOBILE CUTLASS SUPREME

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

    1974 OLDSMOBILE DELTA 88

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

    1977 PONTIAC GRAND PRIX

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

    1973 CHEVROLET MALIBU

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

    1981 OLDSMOBILE CUTLASS

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

    1979 OLDSMOBILE CUTLASS

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

    1969 OLDSMOBILE VISTA CRUISER

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971-1974 OLDSMOBILE CUTLASS SUPREME

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

    1980 PONTIAC CATALINA

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

    1977 OLDSMOBILE CUTLASS SUPREME

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

    1967 OLDSMOBILE DELTA 88

    • EngineType: ALL
    • SubModel: CUSTOM

    1975 PONTIAC VENTURA

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

    1977-1982 OLDSMOBILE DELTA 88

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

    1967 OLDSMOBILE CUTLASS

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

    1977 OLDSMOBILE OMEGA

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

    1982 BUICK RIVIERA

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

    1974 OLDSMOBILE DELTA 88

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

    1979 OLDSMOBILE CUTLASS

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

    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: 442

    1973 CHEVROLET CAMARO

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

    1986-1989 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: ESTATE WAGON

    1969-1973 OLDSMOBILE CUTLASS

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

    1980 OLDSMOBILE CUTLASS SUPREME

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

    1968-1972 OLDSMOBILE F85

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

    1975 OLDSMOBILE CUSTOM CRUISER

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

    1975 OLDSMOBILE OMEGA

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

    1969-1971 OLDSMOBILE CUTLASS

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

    1973 CHEVROLET MALIBU

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

    1976-1977 OLDSMOBILE 98

    • EngineType: ALL
    • SubModel: REGENCY

    1978-1979 OLDSMOBILE 98

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

    1973-1974 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: J
    • 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

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

    1974 BUICK ELECTRA

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

    1979 OLDSMOBILE CUTLASS SALON

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

    1977-1978 BUICK LESABRE

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

    1980-1985 OLDSMOBILE DELTA 88

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

    1980 OLDSMOBILE CUTLASS

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

    1977 OLDSMOBILE CUTLASS

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

    1975 OLDSMOBILE CUTLASS SUPREME

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

    1977 OLDSMOBILE CUTLASS SUPREME

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

    1980 OLDSMOBILE CUTLASS

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

    1980-1984 OLDSMOBILE 98

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

    1972-1973 BUICK LESABRE

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

    1967 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: ALL

    1985-1987 OLDSMOBILE CUTLASS SALON

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

    1973-1974 BUICK ESTATE WAGON

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

    1977 OLDSMOBILE CUTLASS SUPREME

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

    1977-1979 PONTIAC BONNEVILLE

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

    1976-1977 OLDSMOBILE OMEGA

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

    1972 PONTIAC GRAND SAFARI

    • CC: 7457
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977 PONTIAC FIREBIRD

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

    1982-1984 OLDSMOBILE 98

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

    1987 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: 442
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 OLDSMOBILE VISTA CRUISER

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

    1977 OLDSMOBILE DELTA 88

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

    1976-1977 OLDSMOBILE CUTLASS

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

    1980 OLDSMOBILE CUTLASS SUPREME

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

    1977 PONTIAC LEMANS

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

    1990 CADILLAC BROUGHAM

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

    1968 OLDSMOBILE CUTLASS

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

    1987 CHEVROLET CAPRICE

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

    1974 CHEVROLET CAMARO

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

    1973 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: 225

    1968 OLDSMOBILE VISTA CRUISER

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

    1971 OLDSMOBILE CUSTOM CRUISER

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

    1974 OLDSMOBILE CUTLASS

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

    1967 OLDSMOBILE VISTA CRUISER

    • EngineType: ALL
    • SubModel: CUSTOM

    1977 OLDSMOBILE OMEGA

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

    1984-1985 OLDSMOBILE DELTA 88

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

    1970 OLDSMOBILE DELTA 88

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

    1977 OLDSMOBILE OMEGA

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