Performer RPM Small-Bore Cylinder Heads are engineered for use with 265, 283, 305 and 307 c.i.d. small-block Chevy engines produced from 1954-2003 with 3.736" to 4.000" bores. Can also be used with larger bore engines if desired. Unlike our other Performer RPM cylinder heads, the valve spacing has been reduced to 1.817" to accommodate the smaller bores. These cylinder heads have the same great features as every Performer RPM series cylinder head, such as a thick deck, extra thick port walls, high-flowing ports, ductile iron seats, and high-quality rocker studs. The Performer RPM Small-Bore cylinder heads feature state-of-the-art compact combustion chambers and highly efficient ports that offer improved performance throughout the rpm range for great throttle response. They retain the stock straight spark plug angle and exhaust flange bolt pattern for ease of use with factory style exhaust systems. These cylinder heads utilize the early Gen 1 (1959-86) valve cover bolt pattern. Like all Edelbrock cylinder heads, these have been designed, tested and cast from A356 aluminum and heat treated to T-6 specs in Edelbrock's facilities in Southern California to guarantee you get the best from a name you can trust. ** Combustion chamber volume 60cc; Intake runner volume 170cc; Exhaust runner volume 62cc; Intake valve diameter 1.91 in.; Exhaust valve diameter 1.50 in.; V stem diameter 5/16 in.; V guides Maganese Bronze; Deck thickness 9/16 in.; V spring diameter 1.46 in.; V spring maximum lift 0.600 in.; Rocker stud 3/8 in.; Guideplate Hardened steel; Pushrod dia 5/16 in.; V angle 23°; Exhaust port location Stock; Spark plug fitment 14mm x .750 reach, gasket seat. ** INSTALLATION NOTE: Check cam manufacturer's specs for compatibility with v springs for spring rates. Match with Edelbrock intake gasket #7201, exhaust gasket #7204, valve cover gasket #7549 and head gasket #7310.

This Part Fits:

Year	Make	Model	Submodel
1977,1980	Buick	Century	Base
1977-1979	Buick	Century	Custom
1980	Buick	Century	Estate
1978-1980	Buick	Century	Limited
1978-1979	Buick	Century	Special
1978	Buick	Century	Sport
1991	Buick	Commercial Chassis	Base
1978	Buick	LeSabre	Base
1978	Buick	LeSabre	Custom
1977-1980	Buick	Regal	Base
1978-1980	Buick	Regal	Limited
1977	Buick	Regal	SR
1991	Buick	Roadmaster	Estate Wagon
1977-1979	Buick	Skylark	Base
1978-1979	Buick	Skylark	Custom
1977-1979	Buick	Skylark	S
1978	Buick	Skylark	Sport
1977	Buick	Skylark	SR
1991-1992	Cadillac	Brougham	Base
1991-1992	Cadillac	Brougham	d'Elegance
1965-1968,1977-1981	Checker	Marathon	Base
1977-1981	Checker	Marathon	Deluxe
1965-1968	Checker	Marathon	Town Custom
1959	Chevrolet	3B	3200
1959	Chevrolet	3C	3400
1959	Chevrolet	3D	3500
1959	Chevrolet	3E	3600
1959	Chevrolet	3F	3700
1959	Chevrolet	3G	3800
1955-1968	Chevrolet	Bel Air	Base
1955-1956	Chevrolet	Bel Air	Beauville
1955-1957	Chevrolet	Bel Air	Nomad
1958-1968	Chevrolet	Biscayne	Base
1960	Chevrolet	Biscayne	Fleetmaster
1969-1973	Chevrolet	Blazer	Base
1987	Chevrolet	Blazer	Custom Deluxe
1987	Chevrolet	Blazer	Silverado
1958-1961,1969,1971-1972	Chevrolet	Brookwood	Base
1978-1980	Chevrolet	C10	Big Ten
1977-1981	Chevrolet	C10	Cheyenne
1981-1986	Chevrolet	C10	Custom
1977-1980	Chevrolet	C10	Custom Deluxe
1981	Chevrolet	C10	Deluxe
1977-1986	Chevrolet	C10	Scottsdale
1977-1986	Chevrolet	C10	Silverado
1960-1973	Chevrolet	C10 Pickup	Base
1967-1973	Chevrolet	C10 Suburban	Base
1981-1986	Chevrolet	C10 Suburban	Custom
1977-1980	Chevrolet	C10 Suburban	Custom Deluxe
1981	Chevrolet	C10 Suburban	Deluxe
1977-1980,1982,1984-1986	Chevrolet	C10 Suburban	Scottsdale
1977-1980,1982-1986	Chevrolet	C10 Suburban	Silverado
1994-1995	Chevrolet	C1500	Base
1988-1995	Chevrolet	C1500	Cheyenne
1988-1992	Chevrolet	C1500	Scottsdale
1988-1995	Chevrolet	C1500	Silverado
1990-1991,1993-1995	Chevrolet	C1500	WT
1977-1981	Chevrolet	C20	Cheyenne
1981-1986	Chevrolet	C20	Custom
1977-1980	Chevrolet	C20	Custom Deluxe
1981	Chevrolet	C20	Deluxe
1977-1986	Chevrolet	C20	Scottsdale
1977-1986	Chevrolet	C20	Silverado
1960-1973	Chevrolet	C20 Pickup	Base
1967-1973	Chevrolet	C20 Suburban	Base
1981-1986	Chevrolet	C20 Suburban	Custom
1977-1980	Chevrolet	C20 Suburban	Custom Deluxe
1981	Chevrolet	C20 Suburban	Deluxe
1977-1980,1982,1984-1986	Chevrolet	C20 Suburban	Scottsdale
1977,1979-1980,1982-1986	Chevrolet	C20 Suburban	Silverado
1994-1995	Chevrolet	C2500	Base
1988-1995	Chevrolet	C2500	Cheyenne
1988-1992	Chevrolet	C2500	Scottsdale
1988-1995	Chevrolet	C2500	Silverado
1994-1995	Chevrolet	C2500	WT
1978-1979	Chevrolet	C30	Cheyenne
1978-1979	Chevrolet	C30	Custom Deluxe
1978-1979	Chevrolet	C30	Scottsdale
1978-1979	Chevrolet	C30	Silverado
1960-1973	Chevrolet	C30 Pickup	Base
1960-1962	Chevrolet	C40	Base
1969-1973,1976-1980,1988	Chevrolet	Camaro	Base
1979-1986	Chevrolet	Camaro	Berlinetta
1985-1990	Chevrolet	Camaro	Iroc-Z
1973,1976-1978,1987	Chevrolet	Camaro	LT
1976-1978	Chevrolet	Camaro	LT Rally Sport
1976-1980	Chevrolet	Camaro	Rally Sport
1969-1973,1989-1992	Chevrolet	Camaro	RS
1992	Chevrolet	Camaro	RS Heritage Edition
1981-1987	Chevrolet	Camaro	Sport
1979-1987,1991-1992	Chevrolet	Camaro	Z28
1992	Chevrolet	Camaro	Z28 Heritage Edition
1982	Chevrolet	Camaro	Z28 Indianapolis 500 Pace Car
1966-1969,1971-1972,1986-1992	Chevrolet	Caprice	Base
1973,1977-1993	Chevrolet	Caprice	Classic
1986-1990	Chevrolet	Caprice	Classic Brougham
1977-1978,1981-1982	Chevrolet	Caprice	Classic Estate
1977-1981	Chevrolet	Caprice	Classic Landau
1993	Chevrolet	Caprice	Classic LS
1987-1990	Chevrolet	Caprice	Classic LS Brougham
1991-1992	Chevrolet	Caprice	Classic LTZ
1979-1980	Chevrolet	Caprice	Classic Sport
1973	Chevrolet	Caprice	Estate
1967-1968	Chevrolet	Chevelle	300
1967-1969	Chevrolet	Chevelle	300 Deluxe
1964-1968,1970-1972	Chevrolet	Chevelle	Base
1967-1972	Chevrolet	Chevelle	Concours
1969-1972	Chevrolet	Chevelle	Concours Estate
1965-1967,1973	Chevrolet	Chevelle	Deluxe
1969-1972	Chevrolet	Chevelle	Greenbrier
1968-1972	Chevrolet	Chevelle	Malibu
1968-1972	Chevrolet	Chevelle	Nomad
1964-1968,1971	Chevrolet	Chevelle	SS
1963-1967	Chevrolet	Chevy II	Base
1963-1968	Chevrolet	Chevy II	Nova
1964-1967	Chevrolet	Chevy II	Nova SS
1991-1992	Chevrolet	Commercial Chassis	Base
1955-1961,1980	Chevrolet	Corvette	Base
1957-1958	Chevrolet	Del Ray	Base
1959-1960,1964-1973,1976-1987	Chevrolet	El Camino	Base
1976-1977	Chevrolet	El Camino	Classic
1977-1978,1981-1986	Chevrolet	El Camino	Conquista
1968-1973	Chevrolet	El Camino	Custom
1979-1981	Chevrolet	El Camino	Royal Knight
1977-1987	Chevrolet	El Camino	SS
1969-1970	Chevrolet	Estate	Base
1983	Chevrolet	G10	Base
1977-1995	Chevrolet	G10	Beauville
1981-1984,1986-1987	Chevrolet	G10	Bonaventure
1977-1995	Chevrolet	G10	Chevy Van
1977-1995	Chevrolet	G10	Sportvan
1969-1973	Chevrolet	G10 Van	Base
1968-1973	Chevrolet	G10 Van	Sportvan
1977-1995	Chevrolet	G20	Beauville
1983-1984	Chevrolet	G20	Bonaventure
1977-1995	Chevrolet	G20	Chevy Van
1978-1981	Chevrolet	G20	Nomad
1977-1978,1981-1995	Chevrolet	G20	Sportvan
1967-1973	Chevrolet	G20 Van	Base
1968-1973	Chevrolet	G20 Van	Sportvan
1978-1979,1982,1985	Chevrolet	G30	Beauville
1978-1979,1982,1985	Chevrolet	G30	Chevy Van
1978-1979,1982,1985	Chevrolet	G30	Hi-Cube
1958-1969,1971-1973,1977-1985	Chevrolet	Impala	Base
1977	Chevrolet	Impala	Custom
1981-1982	Chevrolet	Impala	Estate
1977-1979	Chevrolet	Impala	Landau
1979-1980	Chevrolet	Impala	Sport
1964,1966-1967	Chevrolet	Impala	SS
1977-1979,1981	Chevrolet	K10	Cheyenne
1981-1986	Chevrolet	K10	Custom
1977-1979	Chevrolet	K10	Custom Deluxe
1981	Chevrolet	K10	Deluxe
1977-1979,1981-1986	Chevrolet	K10	Scottsdale
1977-1979,1981-1986	Chevrolet	K10	Silverado
1960-1973	Chevrolet	K10 Pickup	Base
1967-1973	Chevrolet	K10 Suburban	Base
1981-1986	Chevrolet	K10 Suburban	Custom
1977-1980	Chevrolet	K10 Suburban	Custom Deluxe
1981	Chevrolet	K10 Suburban	Deluxe
1977-1980,1982,1985-1986	Chevrolet	K10 Suburban	Scottsdale
1977,1979-1980,1982-1983,1985-1986	Chevrolet	K10 Suburban	Silverado
1994-1995	Chevrolet	K1500	Base
1988-1995	Chevrolet	K1500	Cheyenne
1988-1992	Chevrolet	K1500	Scottsdale
1988-1995	Chevrolet	K1500	Silverado
1991	Chevrolet	K1500	Sport
1990-1995	Chevrolet	K1500	WT
1977-1978,1980	Chevrolet	K20	Cheyenne
1985	Chevrolet	K20	Custom
1977-1978,1980	Chevrolet	K20	Custom Deluxe
1977-1978,1980,1985	Chevrolet	K20	Scottsdale
1977-1978,1980,1985	Chevrolet	K20	Silverado
1967	Chevrolet	K20 Panel	Base
1960-1973	Chevrolet	K20 Pickup	Base
1967-1973	Chevrolet	K20 Suburban	Base
1985-1986	Chevrolet	K20 Suburban	Custom
1977-1978	Chevrolet	K20 Suburban	Custom Deluxe
1977-1978,1985-1986	Chevrolet	K20 Suburban	Scottsdale
1977,1985-1986	Chevrolet	K20 Suburban	Silverado
1994-1995	Chevrolet	K2500	Base
1988-1995	Chevrolet	K2500	Cheyenne
1988-1992	Chevrolet	K2500	Scottsdale
1988-1995	Chevrolet	K2500	Silverado
1994-1995	Chevrolet	K2500	WT
1968-1973	Chevrolet	K30 Pickup	Base
1977-1980	Chevrolet	K5 Blazer	Cheyenne
1981-1986	Chevrolet	K5 Blazer	Custom
1977-1980	Chevrolet	K5 Blazer	Custom Deluxe
1981	Chevrolet	K5 Blazer	Deluxe
1984	Chevrolet	K5 Blazer	Scottsdale
1978,1980-1986	Chevrolet	K5 Blazer	Silverado
1959-1961,1969,1971-1972	Chevrolet	Kingswood	Base
1969,1971-1972	Chevrolet	Kingswood	Estate
1973	Chevrolet	Laguna	Base
1973	Chevrolet	Laguna	Estate
1976	Chevrolet	Laguna	S3
1964-1967,1973,1976-1981	Chevrolet	Malibu	Base
1976-1983	Chevrolet	Malibu	Classic
1978-1980	Chevrolet	Malibu	Classic Estate