Edelbrock Victor Jr. 23° 220 cylinder heads are an affordable option that delivers maximum power in high-performance street and entry-level competition engines. Its 64cc combustion chamber yields around 10:1 compression ratio in a typical flat-top application and about 12.5:1 when used with some of the most common 12cc dome pistons. One of the key features of the Victor Jr. 23° 220 cylinder heads is the CNC machined chambers and bowls, which result in consistency and improved performance. They also feature angled spark plug holes and maintain the stock 23° valve angle as well as the intake flange bolt pattern for use with 1986 and earlier intake manifolds. All of this allows these cylinder heads to deliver 530-580 hp potential right-out-of-the-box, making them ideal for a budget minded engine build desiring a high quality cylinder head that still uses a stud and guide plate rocker system. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves to be used. ** Combustion chamber volume: 64cc; Intake runner volume: 220cc; Exhaust runner volume: 85cc; Intake valve diameter: 2.10"; Intake valve diameter: 2.10"; Exhaust valve diameter: 1.60"; Valve stem diameter: 5/16"; Valve guides: Manganese bronze; Deck thickness: 11/16"; Valve spring diameter: 1.55"; Valve spring maximum lift: 0.700"; Rocker stud: 7/16"; Guideplate: Hardended steel; Pushrod diameter: 5/16"; Valve angle: 23°; Exhaust port location: Raised .300"; Spark plug fitment: 14mm x 3/4 reach, gasket seat. ** INSTALLATION NOTE: Check cam manufacturers specs for compatibility with valve springs for spring rates. Match with Edelbrock head gasket sets or use Fel-Pro intake gasket #1206 and Fel-Pro exhaust gasket #1405. Requires hardened pushrods. Use Head Bolt Kits for easy installation. These heads require the use of a 14mm x 3/4in. reach, flat gasket spark plug with a heat range appropriate to your application.

This Part Fits:

Year	Make	Model	Submodel
1977	Buick	Century	Base
1977-1979	Buick	Century	Custom
1979	Buick	Century	Special
1977	Buick	Regal	Base
1977	Buick	Regal	SR
1977-1979	Buick	Skylark	Base
1978-1979	Buick	Skylark	Custom
1978	Buick	Skylark	Sport
1977	Buick	Skylark	SR
1962-1975	Chevrolet	Bel Air	Base
1962-1972	Chevrolet	Biscayne	Base
1969-1974	Chevrolet	Blazer	Base
1969-1972	Chevrolet	Brookwood	Base
1978-1980	Chevrolet	C10	Big Ten
1975-1980	Chevrolet	C10	Cheyenne
1982-1986	Chevrolet	C10	Custom
1975-1980	Chevrolet	C10	Custom Deluxe
1975-1980,1982-1986	Chevrolet	C10	Scottsdale
1975-1980,1982-1986	Chevrolet	C10	Silverado
1966-1974	Chevrolet	C10 Pickup	Base
1968-1974	Chevrolet	C10 Suburban	Base
1981-1986	Chevrolet	C10 Suburban	Custom
1975-1980	Chevrolet	C10 Suburban	Custom Deluxe
1981	Chevrolet	C10 Suburban	Deluxe
1975-1980,1982,1984-1986	Chevrolet	C10 Suburban	Scottsdale
1975-1980,1982-1986	Chevrolet	C10 Suburban	Silverado
1975-1981	Chevrolet	C20	Cheyenne
1981-1986	Chevrolet	C20	Custom
1975-1980	Chevrolet	C20	Custom Deluxe
1981	Chevrolet	C20	Deluxe
1975-1986	Chevrolet	C20	Scottsdale
1975-1986	Chevrolet	C20	Silverado
1966-1974	Chevrolet	C20 Pickup	Base
1968-1974	Chevrolet	C20 Suburban	Base
1981-1986	Chevrolet	C20 Suburban	Custom
1975-1980	Chevrolet	C20 Suburban	Custom Deluxe
1981	Chevrolet	C20 Suburban	Deluxe
1975-1980,1982,1984-1986	Chevrolet	C20 Suburban	Scottsdale
1975-1977,1979-1980,1982-1986	Chevrolet	C20 Suburban	Silverado
1975-1981	Chevrolet	C30	Cheyenne
1981-1986	Chevrolet	C30	Custom
1975-1980	Chevrolet	C30	Custom Deluxe
1981	Chevrolet	C30	Deluxe
1975-1986	Chevrolet	C30	Scottsdale
1975-1986	Chevrolet	C30	Silverado
1966-1974	Chevrolet	C30 Pickup	Base
1967-1980	Chevrolet	Camaro	Base
1979-1981	Chevrolet	Camaro	Berlinetta
1974-1978	Chevrolet	Camaro	LT
1976-1978	Chevrolet	Camaro	LT Rally Sport
1976-1980	Chevrolet	Camaro	Rally Sport
1967-1973,1975	Chevrolet	Camaro	RS
1981	Chevrolet	Camaro	Sport
1967-1972	Chevrolet	Camaro	SS
1967-1972,1974,1977-1981	Chevrolet	Camaro	Z28
1966-1972,1986	Chevrolet	Caprice	Base
1973-1980,1985	Chevrolet	Caprice	Classic
1976-1978	Chevrolet	Caprice	Classic Estate
1976-1980	Chevrolet	Caprice	Classic Landau
1975-1976,1979-1980	Chevrolet	Caprice	Classic Sport
1973-1974	Chevrolet	Caprice	Estate
1975	Chevrolet	Caprice	Estate Wagon
1967-1968	Chevrolet	Chevelle	300
1967-1969	Chevrolet	Chevelle	300 Deluxe
1964-1967,1970-1972	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
1964-1972	Chevrolet	Chevelle	SS
1965-1967	Chevrolet	Chevy II	Base
1965-1968	Chevrolet	Chevy II	Nova
1965-1967	Chevrolet	Chevy II	Nova SS
1962-1972,1974,1977-1981	Chevrolet	Corvette	Base
1978	Chevrolet	Corvette	Indianapolis 500 Pace Car
1978	Chevrolet	Corvette	Silver Anniversary Edition
1975-1976	Chevrolet	Corvette	Stingray
1966-1979	Chevrolet	El Camino	Base
1975-1977	Chevrolet	El Camino	Classic
1977-1978	Chevrolet	El Camino	Conquista
1968-1974	Chevrolet	El Camino	Custom
1979	Chevrolet	El Camino	Royal Knight
1969-1979	Chevrolet	El Camino	SS
1975-1980	Chevrolet	G10	Beauville
1986	Chevrolet	G10	Bonaventure
1975-1980	Chevrolet	G10	Chevy Van
1975-1986	Chevrolet	G10	Sportvan
1970-1974	Chevrolet	G10 Van	Base
1970-1974	Chevrolet	G10 Van	Sportvan
1975-1982,1984-1986	Chevrolet	G20	Beauville
1984	Chevrolet	G20	Bonaventure
1975-1982,1984-1986	Chevrolet	G20	Chevy Van
1978-1981	Chevrolet	G20	Nomad
1975-1986	Chevrolet	G20	Sportvan
1970-1974	Chevrolet	G20 Van	Base
1970-1974	Chevrolet	G20 Van	Sportvan
1975-1986	Chevrolet	G30	Beauville
1983-1984	Chevrolet	G30	Bonaventure
1975-1986	Chevrolet	G30	Chevy Van
1975-1986	Chevrolet	G30	Hi-Cube
1975-1986	Chevrolet	G30	Sportvan
1970-1974	Chevrolet	G30 Van	Base
1970-1974	Chevrolet	G30 Van	Sportvan
1962-1985	Chevrolet	Impala	Base
1975-1977	Chevrolet	Impala	Custom
1976	Chevrolet	Impala	Custom Landau
1981-1982	Chevrolet	Impala	Estate
1977-1979	Chevrolet	Impala	Landau
1976	Chevrolet	Impala	S
1975-1976,1979-1980	Chevrolet	Impala	Sport
1964-1967	Chevrolet	Impala	SS
1975-1980	Chevrolet	K10	Cheyenne
1982-1986	Chevrolet	K10	Custom
1975-1980	Chevrolet	K10	Custom Deluxe
1975-1980,1982-1986	Chevrolet	K10	Scottsdale
1975-1980,1982-1986	Chevrolet	K10	Silverado
1966-1974	Chevrolet	K10 Pickup	Base
1968-1974	Chevrolet	K10 Suburban	Base
1981-1986	Chevrolet	K10 Suburban	Custom
1975-1980	Chevrolet	K10 Suburban	Custom Deluxe
1981	Chevrolet	K10 Suburban	Deluxe
1975-1980,1982,1984-1986	Chevrolet	K10 Suburban	Scottsdale
1975-1977,1979-1980,1982-1983,1985-1986	Chevrolet	K10 Suburban	Silverado
1975-1981	Chevrolet	K20	Cheyenne
1981-1986	Chevrolet	K20	Custom
1975-1980	Chevrolet	K20	Custom Deluxe
1981	Chevrolet	K20	Deluxe
1975-1986	Chevrolet	K20	Scottsdale
1975-1983,1985-1986	Chevrolet	K20	Silverado
1966-1974	Chevrolet	K20 Pickup	Base
1968-1970,1972-1974	Chevrolet	K20 Suburban	Base
1981-1986	Chevrolet	K20 Suburban	Custom
1975-1980	Chevrolet	K20 Suburban	Custom Deluxe
1981	Chevrolet	K20 Suburban	Deluxe
1975-1980,1982,1984-1986	Chevrolet	K20 Suburban	Scottsdale
1975-1977,1979-1980,1982-1983,1985-1986	Chevrolet	K20 Suburban	Silverado
1977-1981	Chevrolet	K30	Cheyenne
1981-1986	Chevrolet	K30	Custom
1977-1980	Chevrolet	K30	Custom Deluxe
1981	Chevrolet	K30	Deluxe
1977-1986	Chevrolet	K30	Scottsdale
1977-1986	Chevrolet	K30	Silverado
1968-1974	Chevrolet	K30 Pickup	Base
1976	Chevrolet	K5 Blazer	Base
1975-1980	Chevrolet	K5 Blazer	Cheyenne
1981-1986	Chevrolet	K5 Blazer	Custom
1975,1977-1980	Chevrolet	K5 Blazer	Custom Deluxe
1981	Chevrolet	K5 Blazer	Deluxe
1984	Chevrolet	K5 Blazer	Scottsdale
1978,1980-1986	Chevrolet	K5 Blazer	Silverado
1969-1972	Chevrolet	Kingswood	Base
1969-1972	Chevrolet	Kingswood	Estate
1974-1975	Chevrolet	Laguna	Base
1975-1976	Chevrolet	Laguna	S3
1974	Chevrolet	Laguna	Type S-3
1964-1967,1974-1981	Chevrolet	Malibu	Base
1974-1979	Chevrolet	Malibu	Classic
1975-1976,1978-1979	Chevrolet	Malibu	Classic Estate
1976-1979	Chevrolet	Malibu	Classic Landau
1977,1979	Chevrolet	Malibu	Classic Sport
1974,1979-1980	Chevrolet	Malibu	Estate
1976,1979	Chevrolet	Malibu	Landau
1979	Chevrolet	Malibu	Police
1977,1979-1980	Chevrolet	Malibu	Sport
1970-1974	Chevrolet	Monte Carlo	Base
1973-1974,1976	Chevrolet	Monte Carlo	Landau
1973,1975-1977	Chevrolet	Monte Carlo	S
1975-1976	Chevrolet	Monza	2+2
1976	Chevrolet	Monza	2+2 Spyder
1976	Chevrolet	Monza	Base
1975	Chevrolet	Monza	S
1969-1971,1974-1979	Chevrolet	Nova	Base
1976-1977	Chevrolet	Nova	Concours
1974-1975,1978-1979	Chevrolet	Nova	Custom
1975	Chevrolet	Nova	LN
1975-1978	Chevrolet	Nova	Police
1977-1979	Chevrolet	Nova	Rally
1976	Chevrolet	Nova	SS
1966	Chevrolet	Suburban	Base
1969-1972	Chevrolet	Townsman	Base
1975-1978	GMC	C15	Base
1977-1978	GMC	C15	Heavy Half
1975-1978	GMC	C15	High Sierra
1977	GMC	C15	Indy Hauler
1975-1978	GMC	C15	Sierra Classic
1975-1978	GMC	C15	Sierra Grande
1978	GMC	C15	Street Coupe
1975-1978	GMC	C15 Suburban	Base
1975-1978	GMC	C15 Suburban	High Sierra
1975-1978	GMC	C15 Suburban	Sierra Classic
1975-1978	GMC	C15 Suburban	Sierra Grande
1967-1971,1973-1974	GMC	C15/C1500 Pickup	Base
1967-1974	GMC	C15/C1500 Suburban	Base
1979-1986	GMC	C1500	Base
1979-1980	GMC	C1500	Heavy Half
1979-1986	GMC	C1500	High Sierra
1979-1986	GMC	C1500	Sierra Classic
1979-1982	GMC	C1500	Sierra Grande