Magnum, 305H
Pro Street/Bracket Race, Radical Idle
- Lifter Type: Hydraulic Lifter
- Engine Family: Oldsmobile 260-455 c.i. 8 cyl. 1967-1990
- Description: Hydraulic-Pro Street / Bracket Race cam, good for large engines with 3500 stall and low gears. Radical idle.
- Cam Family: MagnumT Hydraulic Flat Tappet Camshafts
Specification:
- RPM Range: 3000 to 6800
- Valve Timing: 0.006
- Lobe Separation: 110°
- Intake Centerline: 110°
- Valve Lash: Hyd. Intake/ Hyd. Exhaust
- Duration: 305 Intake/ 305 Exhaust
- Duration @ .050" Lift: 253 Intake/ 253 Exhaust
- Valve Lift: 0.54 Intake/0.54 Exhaust
- Lobe Lift: 0.339 Intake/ 0.339 Exhaust
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1975 | Buick | Apollo | SR, Base |
| 1977 | Buick | Century | Base, Special, Custom |
| 1976 - 1979 | Buick | Electra | 225 |
| 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 |
| 1975 - 1983 | Buick | Estate Wagon | Base |
| 1975 - 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 |
| 1978 - 1981 | Buick | LeSabre | Sport |
| 1987 | Buick | LeSabre | T-Type |
| 1977 - 1987 | Buick | Regal | Base |
| 1987 | Buick | Regal | GNX |
| 1986 - 1987 | Buick | Regal | Grand National, Limited |
| 1977 | Buick | Regal | SR |
| 1986 | Buick | Regal | T-Type |
| 1975 - 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 | SR, Sport |
| 1981 - 1985 | Buick | Riviera | T-Type |
| 1983 | Buick | Riviera | XX Anniversary Edition |
| 1976 - 1977 | Buick | Skylark | S |
| 1975 - 1977 | Buick | Skylark | SR, Base |
| 1987 - 1990 | Cadillac | Brougham | d'Elegance, Base |
| 1986 | Cadillac | Fleetwood | 75, Brougham d'Elegance, Brougham Commercial Chassis, Brougham, 75 Formal, Base |
| 1986 - 1990 | Chevrolet | Caprice | Classic Brougham, Base, Classic |
| 1987 - 1990 | Chevrolet | Caprice | Classic LS Brougham |
| 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 |
| 1976 - 1977 | Oldsmobile | Cutlass Supreme | Colonnade |
| 1974 - 1975 | Oldsmobile | Cutlass Supreme | Cruiser |
| 1975 | Oldsmobile | Cutlass Supreme | Hurst |
| 1981 - 1985 | Oldsmobile | Cutlass Supreme | LS |
| 1988 | Oldsmobile | Cutlass Supreme | SL, Classic, Classic Brougham, Indy 500 Pace Car, International |
| 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 |
| 1975 - 1977 | Oldsmobile | Omega | Base |
| 1977 | Oldsmobile | Omega | Deluxe |
| 1975 | Oldsmobile | Omega | Salon |
| 1976 - 1977 | Oldsmobile | Omega | SX, Brougham, F85 |
| 1967 - 1974 | 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 |
| 1977 - 1981 | Pontiac | Bonneville | Brougham, Base |
| 1978 - 1981 | Pontiac | Bonneville | Safari |
| 1977 - 1981 | Pontiac | Catalina | Safari, Base |
| 1977 - 1979 | Pontiac | Firebird | Trans Am, Esprit, Formula, Base |
| 1976 - 1977 | Pontiac | Grand LeMans | Base, LE |
| 1976 | Pontiac | Grand LeMans | BR |
| 1977 | Pontiac | Grand LeMans | Safari |
| 1977 | Pontiac | Grand Prix | LJ, SJ, Base |
| 1977 - 1978 | Pontiac | Grand Safari | Base |
| 1977 | Pontiac | LeMans | Safari |
| 1976 - 1977 | Pontiac | LeMans | Sport, Base, Sport Coupe |
| 1986 | Pontiac | Parisienne | Brougham, Base |
| 1977 | Pontiac | Phoenix | Base |
| 1987 - 1989 | Pontiac | Safari | Base |
| 1975 | Pontiac | Ventura | S, Custom |
| 1975 - 1977 | Pontiac | Ventura | SJ, Base |