AFR Heads, 1075 SBC AFR 227 Eliminator Heads, 75cc

AFR's 227cc Eliminator "Race Ready" aluminum cylinder heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This AFR head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications). Note:*Spread port exhaust*

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° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D
10° Bead Lock Valve Keepers with lash cap 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
8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L