Edelbrock Performer Cylinder Head (60589) for a 75-75 LeSabre Custom, 75-75 98, 75-75 Delta 88, 75-75 Custom Cruiser, 65-78 Catalina, 67-79 Firebird, 65-73 GTO, 65-78 Bonneville, 65-77 Grand Prix, 68-77 LeMans, 73-75 Grand Am Base, 75-77 Grand LeMans, 65-66 Star Chief, 68-70 Tempest,.
Years | Make | Model | Trim | ||
---|---|---|---|---|---|
1975-1975 | Buick | LeSabre | Custom | ||
1975-1975 | Oldsmobile | 98 | Regency | ||
1975-1975 | Oldsmobile | 98 | Luxury | ||
1975-1975 | Oldsmobile | Custom Cruiser | Panel | ||
1975-1975 | Oldsmobile | Custom Cruiser | Base | ||
1975-1975 | Oldsmobile | Delta 88 | Royale | ||
1975-1975 | Oldsmobile | Delta 88 | Base | ||
1965-1970 | Pontiac | Bonneville | Safari | ||
1965-1978 | Pontiac | Bonneville | Base | ||
1976-1978 | Pontiac | Bonneville | Brougham | ||
1978-1978 | Pontiac | Bonneville | Safari | ||
1965-1970 | Pontiac | Catalina | Ventura | ||
1965-1978 | Pontiac | Catalina | Safari | ||
1965-1978 | Pontiac | Catalina | Base | ||
1965-1967 | Pontiac | Catalina | 2+2 | ||
1971-1972 | Pontiac | Catalina | Brougham | ||
1967-1970 | Pontiac | Executive | Safari | ||
1967-1970 | Pontiac | Executive | Base | ||
1967-1967 | Pontiac | Firebird | HO | ||
1967-1977 | Pontiac | Firebird | Base | ||
1967-1969 | Pontiac | Firebird | 400 | ||
1969-1979 | Pontiac | Firebird | Trans Am | ||
1970-1979 | Pontiac | Firebird | Formula | ||
1970-1974 | Pontiac | Firebird | Esprit | ||
1976-1976 | Pontiac | Firebird | Esprit | ||
1973-1975 | Pontiac | Grand Am | Base | ||
1975-1975 | Pontiac | Grand LeMans | Safari | ||
1975-1977 | Pontiac | Grand LeMans | Base | ||
1977-1977 | Pontiac | Grand LeMans | Safari | ||
1965-1974 | Pontiac | Grand Prix | Base | ||
1975-1977 | Pontiac | Grand Prix | SJ | ||
1975-1975 | Pontiac | Grand Prix | LJ | ||
1976-1977 | Pontiac | Grand Prix | Base | ||
1977-1977 | Pontiac | Grand Prix | LJ | ||
1971-1978 | Pontiac | Grand Safari | Base | ||
1971-1974 | Pontiac | Grandville | Base | ||
1975-1975 | Pontiac | Grandville | Brougham | ||
1965-1973 | Pontiac | GTO | Base | ||
1970-1971 | Pontiac | GTO | The Judge | ||
1968-1977 | Pontiac | LeMans | Base | ||
1969-1970 | Pontiac | LeMans | Safari | ||
1970-1977 | Pontiac | LeMans | Sport | ||
1971-1971 | Pontiac | LeMans | T37 | ||
1972-1974 | Pontiac | LeMans | Luxury | ||
1973-1975 | Pontiac | LeMans | Safari | ||
1974-1974 | Pontiac | LeMans | Safari Luxury | ||
1977-1977 | Pontiac | LeMans | Safari | ||
1965-1966 | Pontiac | Star Chief | Base | ||
1966-1966 | Pontiac | Star Chief | Executive | ||
1968-1970 | Pontiac | Tempest | Base | ||
1968-1969 | Pontiac | Tempest | Custom | ||
1968-1969 | Pontiac | Tempest | Safari | ||
1970-1970 | Pontiac | Tempest | GT |
Cylinder Head Specifications:; Combustion chamber volume: 87cc; Intake runner volume: 215cc; Exhaust runner volume: 175cc; Intake valve diameter: 2.11"; Exhaust valve diameter: 1.66"; Valve stem diameter: 11/32"; Valve guides: Manganese bronze; Deck thickness: 5/8"; Valve spring diameter: 1.46"; Valve spring maximum lift: .575"; Rocker stud: 7/16"; Guideplate: Hardended steel; Pushrod diameter: 5/16"; Valve angle: 14°; Exhaust port location: Stock Ram Air IV; Spark plug fitment: 14mm x 3/4 reach, gasket seat. These cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. Performer heads #60579/#60575 are 50-state emissions legal for 1965-79 vehicles. They feature 87cc combustion chambers designed to maximize performance while using less expensive, low-octane fuel with a streetable 9.5:1 compression ratio. Our Performer RPM heads with the 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional cylinder head porter. They include valve guides and seats installed with no intake pushrod holes. Performer RPM #60587 is not port matched or bowl blended and is NHRA accepted for Stock & Super Stock. INSTALLATION NOTE: These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit #8549. Deck thickness: 5/8", rocker stud diameter: 7/16", pushrod diameter: 5/16" (width of slot in guide plate).
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For more information on Edelbrock part number 60589, you can visit the official Edelbrock website.