AFR Heads, 1066 SBC AFR 220 Eliminator Race Ready Heads, 75cc

AFR's 220cc "Race Ready" aluminum cylinder heads feature 100% CNC ported intake, exhaust & chambers. Air flow Research uses A356 aluminum castings and high quality components throughout. This is AFR's largest, best flowing 23 degree aluminum cylinder head for use with conventional rocker arms. Recommended for race applications or radical "Pro Street" style builds.

100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
8mm Bead Lock Intake Valve, 2.100" x 5.000" Overall Valve Length
8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400
Manley 10° 1.500" O.D x 1.120" I.D x .705" I.D Steel Retainers
10° Bead Lock Valve Keepers with lashcap recess
ARP 7/16" Rocker Studs
Adjustable 5/16" Guide Plates
Viton Valve Seals .600" O.D x .495" I.D
Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L