Friends and Family
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 51-602-5

Big Mutha Thumpr Hydraulic Flat Tappet Camshaft Lift .501"/.486" Duration 295/313 RPM Range 2500-6400

COMP Cams 51-602-5

249-51-602-5

jegs shipping
FREE Shipping
Ships from Manufacturer
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
COMP Cams 51-602-5 Big Mutha Thumpr Hydraulic Flat Tappet Camshaft Lift .501"/.486" Duration 295/313 RPM Range 2500-6400 $179.99
Big Mutha Thumpr Hydraulic Flat Tappet Camshaft
Lift .501"/.486"
Duration 295/313
RPM Range 2500-6400

COMP Cams 51-602-5 Details

Pontiac 265-455ci 8 cyl. 1955-1981

Street/Strip, need 9:1 compression 2800 + stall, intake, gears, and headers, very rough idle

Specifications:

Exhaust Valve Lift (in.)
0.486
Intake Valve Lift (in.)
0.501
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
Engine Make/Size
Pontiac 265-455
RPM Range
2500-6400
Usage
Street/Strip
Manufacturer's Part Number:
51-602-5

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 51-602-5 fit your vehicle?

    Narrow Results

    1977 PONTIAC GRAND SAFARI

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1970 PONTIAC EXECUTIVE

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

    1969-1970 PONTIAC LEMANS

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

    1976-1977 PONTIAC LEMANS

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

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1979 BUICK CENTURY

    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1957 PONTIAC CHIEFTAIN

    • CC: 5687
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 347
    • EngineType: V8 ( 5.7 L / 347 )

    1971 PONTIAC CATALINA

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

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1970-1972 PONTIAC GRAND PRIX

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

    1979-1980 PONTIAC GRAND LEMANS

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1970 PONTIAC LEMANS

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

    1975 OLDSMOBILE 98

    • Liter: 6.6
    • SubModel: LUXURY
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1960 PONTIAC VENTURA

    • EngineType: ALL
    • SubModel: ALL

    1977 PONTIAC VENTURA

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1979-1980 PONTIAC GRAND PRIX

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1963 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • Aspiration: N
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1962-1966 PONTIAC GRAND PRIX

    • CC: 6376
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1965-1967 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: SAFARI

    1979-1981 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: FORMULA
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1962 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1974 PONTIAC FIREBIRD

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

    1979-1980 BUICK CENTURY

    • Liter: 4.9
    • SubModel: LIMITED
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1955 PONTIAC STAR CHIEF

    • CC: 4707
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 287
    • EngineType: V8 ( 4.7 L / 287 )

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: VENTURA
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1972-1974 PONTIAC FIREBIRD

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

    1964 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1964 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1963 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • Aspiration: N
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1965 PONTIAC TEMPEST

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: SAFARI
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1975 OLDSMOBILE 98

    • Liter: 6.6
    • SubModel: REGENCY
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1976 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1959 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1970-1971 PONTIAC LEMANS

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

    1975-1976 PONTIAC GRAND PRIX

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

    1963 PONTIAC TEMPEST

    • CC: 5343
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1974 PONTIAC FIREBIRD

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

    1975 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC GRAND LEMANS

    • Liter: 4.9
    • SubModel: SAFARI
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1979-1981 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: ESPRIT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1962 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1979-1981 PONTIAC GRAND LEMANS

    • Liter: 4.9
    • SubModel: SAFARI
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: VENTURA
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1962 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: VENTURA
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1973-1974 PONTIAC GRAND SAFARI

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1963-1964 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • SubModel: VENTURA
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1972-1973 PONTIAC GRANDVILLE

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

    1974 PONTIAC GRAND AM

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 PONTIAC GRAND AM

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

    1968 PONTIAC TEMPEST

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

    1963 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1962 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: VENTURA
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1973 PONTIAC GRANDVILLE

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

    1962 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: VENTURA
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1975 PONTIAC VENTURA

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

    1958 PONTIAC STAR CHIEF

    • EngineType: ALL
    • SubModel: CUSTOM SAFARI

    1974 PONTIAC LEMANS

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

    1973-1974 PONTIAC LEMANS

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

    1963-1966 PONTIAC GRAND PRIX

    • CC: 6900
    • Liter: 6.9
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1970-1971 PONTIAC GRAND PRIX

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

    1963 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • Aspiration: N
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1969 PONTIAC TEMPEST

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: FORMULA
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1958 PONTIAC CHIEFTAIN

    • EngineType: ALL
    • SubModel: BASE

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: ESPRIT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1977-1978 PONTIAC CATALINA

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

    1964 PONTIAC CATALINA

    • CC: 6900
    • Liter: 6.9
    • Aspiration: N
    • SubModel: BASE
    • CUI: 421
    • EngineType: V8 ( 6.9 L / 421 )

    1973-1974 PONTIAC FIREBIRD

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

    1979-1980 BUICK REGAL

    • Liter: 4.9
    • SubModel: LIMITED
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1962-1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1972-1974 PONTIAC VENTURA

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

    1977 PONTIAC GRAND LEMANS

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1963 PONTIAC CATALINA

    • CC: 6376
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1973 PONTIAC LEMANS

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

    1975 PONTIAC LEMANS

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

    1957 PONTIAC STAR CHIEF

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 347
    • EngineType: V8 ( 5.7 L / 347 )

    1977 PONTIAC VENTURA

    • Liter: 4.9
    • SubModel: SJ
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1967 PONTIAC FIREBIRD

    • CC: 5343
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1973-1974 PONTIAC LEMANS

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

    1967-1969 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: 400

    1972 PONTIAC LEMANS

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 PONTIAC FIREBIRD

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

    1971 PONTIAC LEMANS

    • CC: 5733
    • Liter: 5.7
    • SubModel: T37
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 PONTIAC LEMANS

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

    1977 PONTIAC GRAND LEMANS

    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 PONTIAC FIREBIRD

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

    1974 PONTIAC LEMANS

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1963-1964 PONTIAC TEMPEST

    • CC: 5343
    • Liter: 5.3
    • SubModel: SAFARI
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1974 PONTIAC LEMANS

    • EngineType: ALL
    • SubModel: SAFARI LUXURY

    1979 OLDSMOBILE DELTA 88

    • Liter: 4.9
    • SubModel: ROYALE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1964-1965 PONTIAC TEMPEST

    • CC: 5343
    • Liter: 5.3
    • SubModel: CUSTOM
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1979-1981 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: TRANS AM
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1972-1974 PONTIAC FIREBIRD

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

    1972-1973 PONTIAC LEMANS

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

    1971 PONTIAC GRAND SAFARI

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

    1974 PONTIAC GRAND PRIX

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