220cc SBC "Eliminator" 23° Racing Head
AFR's Ultimate SBC Head with Standard Valve and Stud Location
AFR`s 220cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This is AFR`s largest, best flowing head for use with conventional rocker arms. Recommended for race applications or radical "Pro Street" style builds.
220cc SBC Race Ready Flow Chart
Tested on 4.125 Bore
220cc SBC Competition Package Flow Chart
Tested on 4.125 Bore
Included Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #72568mm Bead Lock Intake Valve, 2.100" x 5.000" Overall Valve Length
AFR #72548mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length
AFR #8000PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400
AFR #8511Manley 10° 1.500" O.D x 1.120" I.D x .705" I.D Steel Retainers
AFR #900910° Bead Lock Valve Keepers with lashcap recess
AFR #6405ARP 7/16" Rocker Studs
AFR #6103Adjustable 5/16" Guide Plates
AFR #6612Viton Valve Seals .600" O.D x .495" I.D
AFR #8048Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D
AFR #9060Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
AFR #9070Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
AFR #90518 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
Specifications & Features:
A356 AluminumMaterial
220ccIntake Port Volume
2.240" H x 1.310" W x 3/8 RadiusIntake Port Dimension
StockIntake Port Location
80ccExhaust Port Volume
1.420" H x 1.545" WExhaust Port Dimension
.250" RaisedExhaust Port Location
65cc or 75ccCombustion Chamber Size
Perimeter BoltValve Cover Bolt Pattern
23°Valve Angle
1.580" O.DValve Spring Pocket Diameter
1.750" O.DMax Valve Spring Pocket Machining
Warning: Do not machine spring pad any deeper.
.750"Deck Thickness
4.000"Minimum Bore Diameter
.006" per cc 60cc MaximumFlat Mill
.009" per cc 55cc MaximumAngle Mill
2.180 sq. in. Minimum Cross Sectional Area
14mm x .750" w/Gasket SeatSpark Plug Dimensions
Non Emissions CompliantCarb EO#
Note: Angle mills might require .120" Thick intake gasket.
Recommended Components:
AFR #6820Intake Gasket, Fel-Pro #1206
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6835Exhaust Port Gasket, Fel-Pro #1405
AFR #6800Head Gasket, 350cid Fel-Pro #1003
AFR #6802Head Gasket, 400cid Fel-Pro #1014
AFR #6310SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
AFR #6320Head Bolt Washers, Manley
AFR #6200Stud Girdle GM L98
AFR Titan TXR #4801Suggested Manifold
AFR Titan TXS #4802Suggested Manifold
Autolite 3922Spark Plug Starting Range