Thumpr 279TH7 High Performance Street, Choppy/Thumping Idle
Lifter Type: Hydraulic
Thumpr : High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
Cam Family: Hydraulic Flat Tappet Camshafts
Specifications
RPM Range: 2000 to 5800
Valve Timing: .006
Lobe Separation: 107°
Intake Centerline: 102°
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1975 | Buick | Apollo | Base, SR |
| 1972 - 1973 | Buick | Centurion | Base |
| 1973 - 1977 | Buick | Century | Base |
| 1977 | Buick | Century | Custom, Special |
| 1973 - 1974 | Buick | Century | Luxus |
| 1972 - 1979 | Buick | Electra | 225 |
| 1972 - 1974 | Buick | Electra | 225 Custom |
| 1974 | Buick | Electra | 225 Limited |
| 1973 | Buick | Electra | Base |
| 1975 | Buick | Electra | Custom |
| 1980 - 1987 | Buick | Electra | Estate Wagon |
| 1975 - 1987 | Buick | Electra | Limited |
| 1978 - 1987 | Buick | Electra | Park Avenue |
| 1985 - 1987 | Buick | Electra | T-Type |
| 1972 - 1983 | Buick | Estate Wagon | Base |
| 1972 | Buick | GS | Base |
| 1971 - 1972 | Buick | GS 455 | Base |
| 1972 - 1990 | Buick | LeSabre | Base, Custom |
| 1985 | Buick | LeSabre | Collector's Edition |
| 1977 | Buick | LeSabre | Custom Sport |
| 1985 - 1990 | Buick | LeSabre | Estate Wagon |
| 1979 - 1990 | Buick | LeSabre | Limited |
| 1982 | Buick | LeSabre | Limited Edition F/E |
| 1974 | Buick | LeSabre | Luxus |
| 1978 - 1981 | Buick | LeSabre | Sport |
| 1987 | Buick | LeSabre | T-Type |
| 1977 - 1987 | Buick | Regal | Base |
| 1987 | Buick | Regal | GNX |
| 1986 - 1987 | Buick | Regal | Limited, Grand National |
| 1977 | Buick | Regal | SR |
| 1986 | Buick | Regal | T-Type |
| 1972 - 1985 | Buick | Riviera | Base |
| 1975 | Buick | Riviera | GS |
| 1982 | Buick | Riviera | Limited Edition |
| 1983 - 1985 | Buick | Riviera | Luxury |
| 1978 | Buick | Riviera | LXXV Anniversary Edition |
| 1979 - 1980 | Buick | Riviera | S |
| 1976 | Buick | Riviera | Sport, SR |
| 1981 - 1985 | Buick | Riviera | T-Type |
| 1983 | Buick | Riviera | XX Anniversary Edition |
| 1972 - 1977 | Buick | Skylark | Base |
| 1972 | Buick | Skylark | Custom, 350 |
| 1976 - 1977 | Buick | Skylark | S |
| 1975 - 1977 | Buick | Skylark | SR |
| 1987 - 1990 | Cadillac | Brougham | Base, d'Elegance |
| 1979 | Cadillac | Eldorado | Cabriolet, Biarritz, Base |
| 1986 | Cadillac | Fleetwood | Base, Brougham d'Elegance, 75 Formal, Brougham, 75, Brougham Commercial Chassis |
| 1976 - 1979 | Cadillac | Seville | Base |
| 1978 - 1979 | Cadillac | Seville | Elegante |
| 1977 - 1978 | Cadillac | Seville | Opera |
| 1972 - 1973 | Chevrolet | Bel Air | Base |
| 1973 - 1974 | Chevrolet | Camaro | LT |
| 1972 - 1973 | Chevrolet | Camaro | RS |
| 1972 | Chevrolet | Camaro | SS |
| 1972 - 1974 | Chevrolet | Camaro | Z28, Base |
| 1973 - 1990 | Chevrolet | Caprice | Classic |
| 1986 - 1990 | Chevrolet | Caprice | Classic Brougham, Base |
| 1987 - 1990 | Chevrolet | Caprice | Classic LS Brougham |
| 1973 | Chevrolet | Caprice | Estate |
| 1973 | Chevrolet | Chevelle | Deluxe |
| 1972 | Chevrolet | Corvette | Base |
| 1972 - 1974 | Chevrolet | Impala | Base |
| 1973 - 1974 | Chevrolet | Laguna | Base |
| 1973 | Chevrolet | Laguna | Estate |
| 1974 | Chevrolet | Laguna | Type S-3 |
| 1973 | Chevrolet | Malibu | Base, Estate |
| 1972 - 1974 | Chevrolet | Nova | Base |
| 1973 - 1974 | Chevrolet | Nova | Custom |
| 1967 - 1971 | Oldsmobile | 442 | Base |
| 1967 - 1974 | Oldsmobile | 98 | Base |
| 1967 | Oldsmobile | 98 | Holiday |
| 1975 - 1981 | Oldsmobile | 98 | Luxury |
| 1973 - 1984 | Oldsmobile | 98 | Regency |
| 1982 - 1984 | Oldsmobile | 98 | Regency Brougham |
| 1971 - 1990 | Oldsmobile | Custom Cruiser | Base |
| 1975 - 1976 | Oldsmobile | Custom Cruiser | Panel |
| 1975 - 1977 | Oldsmobile | Cutlass | 442 |
| 1967 - 1980 | Oldsmobile | Cutlass | Base |
| 1977 | Oldsmobile | Cutlass | Colonnade |
| 1976 - 1977 | Oldsmobile | Cutlass | Colonnade S |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1967 | Oldsmobile | Cutlass | Holiday, Turnpike Cruiser |
| 1980 - 1981 | Oldsmobile | Cutlass | LS, Brougham |
| 1968 - 1977 | Oldsmobile | Cutlass | S |
| 1981 | Oldsmobile | Cutlass | Supreme |
| 1976 - 1979 | Oldsmobile | Cutlass | Vista Cruiser |
| 1979 | Oldsmobile | Cutlass | Vista Cruiser Brougham |
| 1978 - 1984 | Oldsmobile | Cutlass Calais | Base |
| 1983 - 1984 | Oldsmobile | Cutlass Calais | Hurst |
| 1980 - 1983 | Oldsmobile | Cutlass Cruiser | Base |
| 1980 - 1981 | Oldsmobile | Cutlass Cruiser | Brougham |
| 1978 - 1986 | Oldsmobile | Cutlass Salon | 442 |
| 1975 - 1987 | Oldsmobile | Cutlass Salon | Base |
| 1978 - 1980 | Oldsmobile | Cutlass Salon | Brougham |
| 1979 | Oldsmobile | Cutlass Salon | Hurst |
| 1987 | Oldsmobile | Cutlass Supreme | 442 |
| 1967 - 1988 | Oldsmobile | Cutlass Supreme | Base |
| 1977 - 1987 | Oldsmobile | Cutlass Supreme | Brougham |
| 1988 | Oldsmobile | Cutlass Supreme | Classic, International, SL, Classic Brougham, Indy 500 Pace Car |
| 1976 - 1977 | Oldsmobile | Cutlass Supreme | Colonnade |
| 1974 - 1975 | Oldsmobile | Cutlass Supreme | Cruiser |
| 1975 | Oldsmobile | Cutlass Supreme | Hurst |
| 1981 - 1985 | Oldsmobile | Cutlass Supreme | LS |
| 1976 | Oldsmobile | Cutlass Tiara | Base |
| 1967 - 1968 | Oldsmobile | Delmont 88 | Base |
| 1967 | Oldsmobile | Delmont 88 | Holiday |
| 1967 - 1983 | Oldsmobile | Delta 88 | Base |
| 1967 - 1971 | Oldsmobile | Delta 88 | Custom |
| 1967 - 1981 | Oldsmobile | Delta 88 | Holiday |
| 1969 - 1985 | Oldsmobile | Delta 88 | Royale |
| 1980 - 1985 | Oldsmobile | Delta 88 | Royale Brougham |
| 1984 - 1985 | Oldsmobile | Delta 88 | Royale Brougham LS |
| 1967 - 1972 | Oldsmobile | F85 | Base |
| 1973 - 1977 | Oldsmobile | Omega | Base |
| 1976 - 1977 | Oldsmobile | Omega | Brougham, F85, SX |
| 1977 | Oldsmobile | Omega | Deluxe |
| 1975 | Oldsmobile | Omega | Salon |
| 1967 - 1971 | Oldsmobile | Toronado | Base |
| 1971 - 1985 | Oldsmobile | Toronado | Brougham |
| 1985 | Oldsmobile | Toronado | Caliente |
| 1968 - 1976 | Oldsmobile | Toronado | Custom |
| 1967 | Oldsmobile | Toronado | Deluxe |
| 1977 | Oldsmobile | Toronado | XS |
| 1980 - 1981 | Oldsmobile | Toronado | XSC |
| 1977 - 1979 | Oldsmobile | Toronado | XSR |
| 1967 - 1975 | Oldsmobile | Vista Cruiser | Base |
| 1967 | Oldsmobile | Vista Cruiser | Custom |
| 1972 - 1981 | Pontiac | Bonneville | Base |
| 1977 - 1981 | Pontiac | Bonneville | Brougham |
| 1978 - 1981 | Pontiac | Bonneville | Safari |
| 1972 - 1981 | Pontiac | Catalina | Base, Safari |
| 1972 | Pontiac | Catalina | Brougham |
| 1977 - 1979 | Pontiac | Firebird | Trans Am, Formula, Esprit, Base |
| 1976 | Pontiac | Grand LeMans | BR |
| 1976 - 1977 | Pontiac | Grand LeMans | LE, Base |
| 1977 | Pontiac | Grand LeMans | Safari |
| 1977 | Pontiac | Grand Prix | LJ, SJ, Base |
| 1972 - 1978 | Pontiac | Grand Safari | Base |
| 1976 - 1977 | Pontiac | LeMans | Base, Sport Coupe, Sport |
| 1977 | Pontiac | LeMans | Safari |
| 1986 | Pontiac | Parisienne | Brougham, Base |
| 1977 | Pontiac | Phoenix | Base |
| 1987 - 1989 | Pontiac | Safari | Base |
| 1975 - 1977 | Pontiac | Ventura | Base, SJ |
| 1975 | Pontiac | Ventura | S, Custom |