Cylinder Head Specifications: Combustion chamber vol: 64cc; Intake runner vol: 200cc; Exhaust runner vol: 80cc; Intake v. diameter: 2.02"; Exhaust v. diameter: 1.60"; V. stem diameter: 11/32"; V. guides: Maganese bronze; Deck thickness: 5/8"; V. spring diameter: 1.46"; V. spring maximum lift: .575"; Rocker stud: 3/8"; Guideplate: Hardened steel; Pushrod diameter: 5/16"; V. angle: 23°; Exh. port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat. Edelbrock E-Tec Cylinder Heads are replacements for 302, 327, 350 & 400 c.i.d. S/B Chevy engines with "Vortec-style" manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance. A unique combustion chamber design positions the spark plug closer to the center of the cylinder, promoting a more efficient combustion resulting in more power. These heads include an adjustable rocker stud and guide plate set-up for use with adjustable rockers or washers to properly position the stud height to accommodate factory style self-aligning rocker arms. They have 20% more exhaust flow than cast iron Vortec heads, great performance up to 6000 rpm and can produce 9.5:1 compression with stock pistons in 350 cubic-inch engines. RPM E-Tec cylinder heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds. INSTALLATION NOTE: Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. To use stock rockers on small-block Chevy heads, .100" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits for easy installation. S/B Chevy heads may not be used on engines with less than 4" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450" valve lift.

This Part Fits:

Year	Make	Model	Submodel
1980-1985,1987-1991	Avanti	II	Base
1985	Avanti	II	GT
1980	Buick	Century	Base
1980	Buick	Century	Estate
1980	Buick	Century	Limited
1991-1993	Buick	Commercial Chassis	Base
1980	Buick	Regal	Base
1980	Buick	Regal	Limited
1992-1993	Buick	Roadmaster	Base
1991-1993	Buick	Roadmaster	Estate Wagon
1992-1993	Buick	Roadmaster	Limited
1980-1982	Checker	Marathon	Base
1980-1982	Checker	Marathon	Deluxe
1980	Chevrolet	C10	Big Ten
1980-1981	Chevrolet	C10	Cheyenne
1981-1986	Chevrolet	C10	Custom
1980	Chevrolet	C10	Custom Deluxe
1981	Chevrolet	C10	Deluxe
1980-1986	Chevrolet	C10	Scottsdale
1980-1986	Chevrolet	C10	Silverado
1981-1986	Chevrolet	C10 Suburban	Custom
1980	Chevrolet	C10 Suburban	Custom Deluxe
1981	Chevrolet	C10 Suburban	Deluxe
1980,1982,1984-1986	Chevrolet	C10 Suburban	Scottsdale
1980,1982-1986	Chevrolet	C10 Suburban	Silverado
1980-1981	Chevrolet	C20	Cheyenne
1981-1986	Chevrolet	C20	Custom
1980	Chevrolet	C20	Custom Deluxe
1981	Chevrolet	C20	Deluxe
1980-1986	Chevrolet	C20	Scottsdale
1980-1986	Chevrolet	C20	Silverado
1981-1986	Chevrolet	C20 Suburban	Custom
1980	Chevrolet	C20 Suburban	Custom Deluxe
1981	Chevrolet	C20 Suburban	Deluxe
1980,1982,1984-1986	Chevrolet	C20 Suburban	Scottsdale
1980,1982-1986	Chevrolet	C20 Suburban	Silverado
1980-1981	Chevrolet	C30	Cheyenne
1981-1986	Chevrolet	C30	Custom
1980	Chevrolet	C30	Custom Deluxe
1981	Chevrolet	C30	Deluxe
1980-1986	Chevrolet	C30	Scottsdale
1980-1986	Chevrolet	C30	Silverado
1980	Chevrolet	Camaro	Base
1980-1986	Chevrolet	Camaro	Berlinetta
1985-1986	Chevrolet	Camaro	Iroc-Z
1980	Chevrolet	Camaro	Rally Sport
1981-1986	Chevrolet	Camaro	Sport
1980-1986	Chevrolet	Camaro	Z28
1982	Chevrolet	Camaro	Z28 Indianapolis 500 Pace Car
1986	Chevrolet	Caprice	Base
1980-1986	Chevrolet	Caprice	Classic
1986	Chevrolet	Caprice	Classic Brougham
1981-1982	Chevrolet	Caprice	Classic Estate
1980-1981	Chevrolet	Caprice	Classic Landau
1980	Chevrolet	Caprice	Classic Sport
1980-1982,1984-1986	Chevrolet	Corvette	Base
1982	Chevrolet	Corvette	Collector's Edition
1986	Chevrolet	Corvette	Indianapolis 500 Pace Car
1980-1986	Chevrolet	El Camino	Base
1981-1986	Chevrolet	El Camino	Conquista
1980-1981	Chevrolet	El Camino	Royal Knight
1980-1986	Chevrolet	El Camino	SS
1983	Chevrolet	G10	Base
1980-1986	Chevrolet	G10	Beauville
1981-1984,1986	Chevrolet	G10	Bonaventure
1980-1986	Chevrolet	G10	Chevy Van
1980-1986	Chevrolet	G10	Sportvan
1980-1986	Chevrolet	G20	Beauville
1983-1984	Chevrolet	G20	Bonaventure
1980-1986	Chevrolet	G20	Chevy Van
1980-1981	Chevrolet	G20	Nomad
1980-1986	Chevrolet	G20	Sportvan
1980-1986	Chevrolet	G30	Beauville
1983-1984	Chevrolet	G30	Bonaventure
1980-1986	Chevrolet	G30	Chevy Van
1980-1986	Chevrolet	G30	Hi-Cube
1980-1986	Chevrolet	G30	Sportvan
1980-1985	Chevrolet	Impala	Base
1981-1982	Chevrolet	Impala	Estate
1980	Chevrolet	Impala	Sport
1980-1981	Chevrolet	K10	Cheyenne
1981-1986	Chevrolet	K10	Custom
1980	Chevrolet	K10	Custom Deluxe
1981	Chevrolet	K10	Deluxe
1980-1986	Chevrolet	K10	Scottsdale
1980-1986	Chevrolet	K10	Silverado
1981-1986	Chevrolet	K10 Suburban	Custom
1980	Chevrolet	K10 Suburban	Custom Deluxe
1981	Chevrolet	K10 Suburban	Deluxe
1980,1982,1984-1986	Chevrolet	K10 Suburban	Scottsdale
1980,1982-1983,1985-1986	Chevrolet	K10 Suburban	Silverado
1980-1981	Chevrolet	K20	Cheyenne
1981-1986	Chevrolet	K20	Custom
1980	Chevrolet	K20	Custom Deluxe
1981	Chevrolet	K20	Deluxe
1980-1986	Chevrolet	K20	Scottsdale
1980-1983,1985-1986	Chevrolet	K20	Silverado
1981-1986	Chevrolet	K20 Suburban	Custom
1980	Chevrolet	K20 Suburban	Custom Deluxe
1981	Chevrolet	K20 Suburban	Deluxe
1980,1982,1984-1986	Chevrolet	K20 Suburban	Scottsdale
1980,1982-1983,1985-1986	Chevrolet	K20 Suburban	Silverado
1980-1981	Chevrolet	K30	Cheyenne
1981-1986	Chevrolet	K30	Custom
1980	Chevrolet	K30	Custom Deluxe
1981	Chevrolet	K30	Deluxe
1980-1986	Chevrolet	K30	Scottsdale
1980-1986	Chevrolet	K30	Silverado
1980	Chevrolet	K5 Blazer	Cheyenne
1981-1986	Chevrolet	K5 Blazer	Custom
1980	Chevrolet	K5 Blazer	Custom Deluxe
1981	Chevrolet	K5 Blazer	Deluxe
1984	Chevrolet	K5 Blazer	Scottsdale
1980-1986	Chevrolet	K5 Blazer	Silverado
1980-1981	Chevrolet	Malibu	Base
1980-1983	Chevrolet	Malibu	Classic
1980	Chevrolet	Malibu	Classic Estate
1980-1981	Chevrolet	Malibu	Classic Landau
1980	Chevrolet	Malibu	Classic Sport
1980	Chevrolet	Malibu	Estate
1980	Chevrolet	Malibu	Sport
1981-1986	Chevrolet	Monte Carlo	Base
1983	Chevrolet	Monte Carlo	CL
1980-1981	Chevrolet	Monte Carlo	Landau
1986	Chevrolet	Monte Carlo	LS
1980	Chevrolet	Monte Carlo	Sport
1983-1986	Chevrolet	Monte Carlo	SS
1985	Excalibur	Phaeton	Anniversary
1983-1984,1986-1989	Excalibur	Phaeton	Base
1980-1986	GMC	C1500	Base
1980	GMC	C1500	Heavy Half
1980-1986	GMC	C1500	High Sierra
1980-1986	GMC	C1500	Sierra Classic
1980-1982	GMC	C1500	Sierra Grande
1980-1982	GMC	C1500	Street Coupe
1980-1986	GMC	C1500 Suburban	Base
1980-1986	GMC	C1500 Suburban	High Sierra
1980-1986	GMC	C1500 Suburban	Sierra Classic
1980-1982	GMC	C1500 Suburban	Sierra Grande
1980-1986	GMC	C2500	Base
1980-1986	GMC	C2500	High Sierra
1980-1986	GMC	C2500	Sierra Classic
1980-1982	GMC	C2500	Sierra Grande
1980-1986	GMC	C2500 Suburban	Base
1980-1986	GMC	C2500 Suburban	High Sierra
1980-1986	GMC	C2500 Suburban	Sierra Classic
1980-1982	GMC	C2500 Suburban	Sierra Grande
1980-1986	GMC	C3500	Base
1980-1986	GMC	C3500	High Sierra
1980-1986	GMC	C3500	Sierra Classic
1980-1982	GMC	C3500	Sierra Grande
1981-1986	GMC	Caballero	Amarillo
1980-1986	GMC	Caballero	Base
1981	GMC	Caballero	Conquista
1980-1986	GMC	Caballero	Diablo
1980	GMC	Caballero	Laredo
1981	GMC	Caballero	Royal Knight
1980-1986	GMC	G1500	Rally
1983-1984	GMC	G1500	Rally Custom
1980-1986	GMC	G1500	Rally STX
1980-1986	GMC	G1500	Vandura
1980-1986	GMC	G2500	Rally
1983-1984	GMC	G2500	Rally Custom
1980-1986	GMC	G2500	Rally STX
1980-1986	GMC	G2500	Vandura
1980-1986,1988	GMC	G3500	Magnavan
1980-1986	GMC	G3500	Rally
1980-1986	GMC	G3500	Rally Camper Special
1981-1988	GMC	G3500	Rally Custom
1980-1986	GMC	G3500	Rally STX
1980-1986	GMC	G3500	Vandura
1980-1986	GMC	G3500	Vandura Special
1980-1986	GMC	Jimmy	Base
1980-1985	GMC	Jimmy	High Sierra
1980-1986	GMC	Jimmy	Sierra Classic
1980-1982	GMC	Jimmy	Sierra Grande
1980-1982	GMC	Jimmy	Street Coupe
1980-1986	GMC	K1500	Base
1980-1986	GMC	K1500	High Sierra
1980-1986	GMC	K1500	Sierra Classic
1980-1982	GMC	K1500	Sierra Grande
1980-1986	GMC	K1500 Suburban	Base
1980-1986	GMC	K1500 Suburban	High Sierra
1980-1986	GMC	K1500 Suburban	Sierra Classic
1980-1982	GMC	K1500 Suburban	Sierra Grande
1980-1986	GMC	K2500	Base
1980-1986	GMC	K2500	High Sierra
1980-1986	GMC	K2500	Sierra Classic
1980-1982	GMC	K2500	Sierra Grande
1980-1986	GMC	K2500 Suburban	Base
1980-1986	GMC	K2500 Suburban	High Sierra
1980-1986	GMC	K2500 Suburban	Sierra Classic
1980-1982	GMC	K2500 Suburban	Sierra Grande
1980-1986	GMC	K3500	Base
1980-1986	GMC	K3500	High Sierra
1980-1986	GMC	K3500	Sierra Classic
1980-1982	GMC	K3500	Sierra Grande
1980	Oldsmobile	Cutlass	Base
1980	Oldsmobile	Cutlass	Brougham
1980	Oldsmobile	Cutlass	LS