AFR 220cc SBC Racing Cylinder Head
The Most Popular Racing Head Ever
220cc Racing Head, Angle Plug, Standard Exhaust 1065
Our Ultimate standard valve and stud location offering
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AFR is reviving its popular 220cc moniker due to overwhelming request from customers for a larger bolt on standard valve location head. Unlike the previous 220, the new Eliminator version requires no special parts. Valves and studs are in stock GM L98 locations just like our very popular, 180, 195, and 210 series heads. They do not require offset rockers of any kind yet are still able to muster flow numbers that are in raised runner head territory. A 329 CFM head that is perfect for someone wanting to retain all their standard components while still having the airflow to reach that elusive 700 HP mark in aggressive drag race trim. Displacement ranging from a high RPM 350 to a 427 CID with natural applications in the various sportsman classes, bracket/drag cars, oval track, and larger displacement street machines with typical operating ranges between 4000 to 8000 RPM depending on application. As always they come with AFR’s trademark ¾” thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.100 intake and 1.600 exhaust with AFR's hardened ductile iron interlocking seats. Dual valve cover bolt pattern is standard. Exhaust port and bolt pattern are raised .250 over GM L98, this rarely affects header or chassis fitment.
220cc SBC Race Ready Flow Chart
Tested on 4.125 Bore
Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7256Bead Lock Intake Valve, 2.100" x .100" long
AFR #7254Bead Lock Exhaust Valve, 1.600" x .100" long
AFR #80001.550" OD Roller Dual Valve Spring, 225 lbs on seat, .710" maximum lift
Specifications, Features, and Optional Supporting Components
65-70 ft. lbsHead Torque
55-60 ft. lbsRocker Stud Torque
AFR #6820Intake Gasket 1.280x2.090 w/ 3/8" radius, Fel-Pro #1206
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6310SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
Autolite 3910Spark Plug Starting Range
65cc or 75ccCombustion Chambers
Can be cut to 1.750, no deeperSpring Pocket
Standard GM L98Valve Spacing
Standard GM L98Rocker Arms
23°Valve Angle
.008" per ccAngle Mill (Milling options available)
.006" per ccFlat Mill (Milling options available)
Note: Milling head deck will affect flow numbers. Angle mills might require .120 thick intake gasket.
This product was added to our catalog on Thursday 20 January, 2005.