Cylinder Head Specifications; Combustion chamber volume: 16cc; Intake runner volume: 215cc; Exhaust runner volume: 115cc; Intake valve diameter: 2.19; Exhaust valve diameter: 1.72; Valve stem diameter: 11/32; Valve guides: Manganese bronze; Deck thickness: 9/16; Valve spring diameter: 1.55; Valve spring maximum lift: .600; Rocker stud: 7/16; Guideplate: Hardended steel; Pushrod diameter: 3/8; Valve angle: 0°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat ** Use Edelbrock head gasket sets. May be used on 348 engines with valve lifts up to .550 only. 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. These heads will only fit 1958-65 348 c.i.d. W engines if an Edelbrock #5409, #7159 or stock large port 409 c.i.d. manifold is used. Proper cylinder wall notching must be checked to ensure exhaust valve to cylinder clearance. Deck thickness: 9/16, rocker stud diameter: 7/16, pushrod diameter: 3/8 (width of slot in guide plate).

This Part Fits:

Year	Make	Model	Submodel
1958-1965	Chevrolet	Bel Air	Base
1958-1965	Chevrolet	Biscayne	Base
1960	Chevrolet	Biscayne	Fleetmaster
1958-1961	Chevrolet	Brookwood	Base
1960-1961	Chevrolet	C10 Pickup	Base
1960-1961	Chevrolet	C20 Pickup	Base
1960-1961	Chevrolet	C30 Pickup	Base
1958	Chevrolet	Del Ray	Base
1959-1960	Chevrolet	El Camino	Base
1958-1965	Chevrolet	Impala	Base
1964-1965	Chevrolet	Impala	SS
1960-1961	Chevrolet	K10 Pickup	Base
1960-1961	Chevrolet	K20 Pickup	Base
1959-1961	Chevrolet	Kingswood	Base
1958-1961	Chevrolet	Nomad	Base
1959-1961	Chevrolet	Parkwood	Base
1958	Chevrolet	Sedan Delivery	Base
1960-1961	Chevrolet	Suburban	Base
1958,1960	Chevrolet	Truck	Base
1958	Chevrolet	Yeoman	Base