800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

COMP Cams CL42-600-5

Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .491"/.476" Duration 278/296 RPM Range 2000-5800

COMP Cams CL42-600-5

249-CL42-600-5

jegs shipping
FREE Shipping
Estimated ship date 12/18/17 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
COMP Cams CL42-600-5 Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .491"/.476" Duration 278/296 RPM Range 2000-5800 $247.99
Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .491"/.476"
Duration 278/296
RPM Range 2000-5800

COMP Cams CL42-600-5 Details

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

Thumpr™ : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

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
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
0.491 int./0.476 exh.
Valve Springs Included
No
Valve Springs Required
Yes
Valve Stem Seals Included
No
Lobe Separation (Deg)
107
Manufacturer's Part Number:
CL42-600-5

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 CL42-600-5 fit your vehicle?

    Narrow Results
    Filter By
    Year
    Filter By
    Make
    Filter By
    Model
    Filter By
    SubModel
    Filter By
    EngineType
    Filter By
    CC
    Filter By
    Liter
    Filter By
    Aspiration

    1968 OLDSMOBILE VISTA CRUISER

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

    1973-1974 CHEVROLET NOVA

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

    1984 OLDSMOBILE CUTLASS CALAIS

    • EngineType: ALL
    • SubModel: HURST

    1977 BUICK LESABRE

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

    1981 PONTIAC BONNEVILLE

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

    1984-1985 OLDSMOBILE DELTA 88

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

    1973 CHEVROLET LAGUNA

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

    1974 OLDSMOBILE CUTLASS SUPREME

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

    1975 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: SALON
    • 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 )

    1976-1977 OLDSMOBILE CUTLASS

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

    1977 OLDSMOBILE DELTA 88

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

    1977 OLDSMOBILE OMEGA

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

    1977 OLDSMOBILE CUTLASS SUPREME

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

    1976-1977 OLDSMOBILE 98

    • EngineType: ALL
    • SubModel: LUXURY

    1977-1978 BUICK LESABRE

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

    1977 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: 442
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC LEMANS

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

    1977-1978 BUICK RIVIERA

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

    1974 OLDSMOBILE OMEGA

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979 OLDSMOBILE CUTLASS SALON

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

    1977-1982 OLDSMOBILE DELTA 88

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

    1968-1973 OLDSMOBILE VISTA CRUISER

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

    1987-1989 CADILLAC BROUGHAM

    • EngineType: ALL
    • SubModel: ALL

    1972-1974 OLDSMOBILE CUTLASS

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

    1982-1987 OLDSMOBILE CUTLASS SUPREME

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

    1977-1979 PONTIAC CATALINA

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

    1977 PONTIAC CATALINA

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

    1979 OLDSMOBILE CUTLASS

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

    1975 PONTIAC VENTURA

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

    1979 CADILLAC ELDORADO

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

    1974 BUICK ELECTRA

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

    1977-1982 OLDSMOBILE DELTA 88

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

    1980 OLDSMOBILE CUTLASS

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

    1980-1981 OLDSMOBILE DELTA 88

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

    1979 OLDSMOBILE CUTLASS

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

    1974 BUICK RIVIERA

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

    1978-1979 OLDSMOBILE 98

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

    1975 BUICK LESABRE

    • 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: 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 )

    1983 BUICK RIVIERA

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

    1977 BUICK CENTURY

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

    1982-1987 OLDSMOBILE CUTLASS SUPREME

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

    1979 OLDSMOBILE CUTLASS SUPREME

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

    1972-1973 BUICK LESABRE

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

    1977 PONTIAC VENTURA

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

    1978-1979 BUICK ESTATE WAGON

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

    1974 OLDSMOBILE DELTA 88

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

    1972-1973 OLDSMOBILE DELTA 88

    • CC: 7457
    • Liter: 7.5
    • SubModel: BASE
    • 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 )

    1974 BUICK ELECTRA

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

    1975-1976 BUICK RIVIERA

    • EngineType: ALL
    • SubModel: ALL

    1968-1973 OLDSMOBILE DELTA 88

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

    1972-1974 CHEVROLET BEL AIR

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

    1977-1979 PONTIAC FIREBIRD

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

    1977 OLDSMOBILE CUTLASS SUPREME

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

    1968 OLDSMOBILE DELMONT 88

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

    1972-1973 BUICK CENTURION

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

    1972 BUICK ESTATE WAGON

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

    1971-1973 OLDSMOBILE CUTLASS SUPREME

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

    1967 OLDSMOBILE CUTLASS

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

    1974 BUICK ELECTRA

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

    1986-1988 CHEVROLET CAPRICE

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

    1981 OLDSMOBILE CUTLASS CRUISER

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

    1972 PONTIAC CATALINA

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

    1976-1977 OLDSMOBILE CUTLASS

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

    1980-1981 OLDSMOBILE CUTLASS SUPREME

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

    1977 BUICK LESABRE

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

    1988 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: CLASSIC

    1972 PONTIAC CATALINA

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

    1973 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: 225

    1970 OLDSMOBILE DELTA 88

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

    1977 PONTIAC GRAND PRIX

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

    1978 OLDSMOBILE TORONADO

    • EngineType: ALL
    • SubModel: XSR

    1977 BUICK SKYLARK

    • Liter: 5.7
    • SubModel: S
    • 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 )

    1975 BUICK APOLLO

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

    1976-1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: COLONNADE
    • 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 )

    1973 CHEVROLET MALIBU

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

    1980 OLDSMOBILE CUTLASS

    • Liter: 4.3
    • SubModel: LS
    • 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 )

    1981-1985 BUICK LESABRE

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

    1973 CHEVROLET NOVA

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

    1976-1977 OLDSMOBILE OMEGA

    • Liter: 4.3
    • SubModel: F85
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1987-1989 PONTIAC SAFARI

    • EngineType: ALL
    • SubModel: ALL

    1976 OLDSMOBILE CUTLASS TIARA

    • EngineType: ALL
    • SubModel: ALL

    1967 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: ALL

    1967-1971 OLDSMOBILE 98

    • EngineType: ALL
    • SubModel: ALL

    1979 CADILLAC ELDORADO

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

    1980-1982 OLDSMOBILE CUTLASS CALAIS

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

    1972 OLDSMOBILE F85

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

    1972-1973 BUICK LESABRE

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

    1974 OLDSMOBILE CUTLASS SUPREME

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

    1969 OLDSMOBILE 442

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

    1973 CHEVROLET CAPRICE

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

    1973 BUICK CENTURY

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

    1975 OLDSMOBILE CUTLASS

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

    1977 PONTIAC GRAND LEMANS

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

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List