Technical Specifications of...

S/R Stock Replacement Cylinder Heads

Material: High density cast iron
Valve Seats: Integral intake, hardened steel exhaust
Valve Size: 1.940" x 1.500"
Rocker Arm Studs: 3/8" shank, screw-in style with hex shoulder
Accessory Flange: Stock locations. 7-bolt universal pattern
Included In Assembly: Manley stainless steel forged valves with swirl-polished heads, umbrella valve seals, Hardcore valve springs, Manley 7° chrome moly retainers and keepers
Recommended Installation Items:
Head Gaskets: Fel-Pro #1003 (265-350) or equivalent
Pushrods: OEM can be used. Hardened not required
Spark Plugs: Accepts 14mm .460" reach tapered seat 5/8" hex (Accel 276, AC-Delco 43TS or 44TS, Champion 670 or 802 or equivalent)
Intake Gasket: Fel-Pro #1204 or #1256 or equivalent
Exhaust Gasket: Fel-Pro #1404 or #1405 or equivalent