Cylinder Heads, E Street, Ford, Edelbrock [R]

Cylinder head specifications: combustion chamber volume: 60 cc, intake runner volume: 170 cc, exhaust runner volume: 60 cc, intake valve diameter: 1.90 in. / 2.02 in., exhaust valve diameter: 1.60 in., valve stem diameter: n/a, valve guides: manganese bronze, deck thickness: 5/8 in., valve spring diameter: 1.460 in., valve spring maximum lift: .550 in., rocker stud: 3/8 in. w/ guide plate, guideplate: hardended steel, pushrod diameter: 5/16 in., valve angle: n/a, exhaust port location: stock, spark plug fitment: 14 mmx 3/4 reach, gasket seat -use w/ hydraulic flat tappet camshafts .550 in. max lift. (not compatible w/ hydraulic roller camshafts) recommended spark plugs are champion rc12yc or equivalent 14 mmx 3/4 in. reach w/ flat gasket seat. Requires hardened pushrods. 289-302 c.i.d. With 7/16 in. head bolts requires #9680 head bolt bushing kit. 1.90 in. heads are ideal for stock pistons, 2.02 in. heads require additional piston to valve clearance. Rocker arm studs & guide plates are not included w/ bare versions of e-street cylinder heads.