| The powerful AFR 220cc intake port small block Chevy angle plug cylinder heads are available in three stages of performance. The Race Ready version features 70% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes. Both come with 100% CNC ported 76cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). In addition we also offer the “as cast” Stage 1 heads for 220cc performance on a budget. Standard valves are 2.080 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23º valve angle, and standard valve spacing make this the perfect head for 350 to 434 cid engines in drag cars, sprint cars, and late model oval trackers operating between 4500 and 8500 rpm. The 220cc heads are available in either standard or spread port exhaust. Straight plug versions and down nozzle provisions are special order only. AFR offset stud girdles are the only special parts required. Some applications require shaft mount rockers for durability and reliability of valve train components. Not recommended for street use, unless shaft mount rocker is used.
Note: Heads are sold as a set. Available with parts ready to install. Please choose in the drop-down menu below. Not for sale or use on pollution controlled vehicles in the U.S.
Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
70% to 100% CNC Ported Intake Ports
Competition 3-angle Valve Job
Intake Valve, 2.080" x .050" long, AFR #7018
Exhaust Valve, 1.600" x .050" long, AFR #7057
1.550" OD Roller Valve Spring, 220 lbs. on seat, .670" maximum lift, AFR #8000
10º 4140 Chrome Moly Retainers, AFR #8510
10º Valve Locks, AFR #9005
7/16" Rocker Studs, AFR #6405
5/16" Guide Plates, AFR #6105
Valve Seals, AFR #6611
Hardened Shims, AFR #8045
Intake Valve Seats, AFR #9060
Exhaust Valve Seats, AFR #9070
Bronze Valve Guides, AFR #9050
Special orders available on request.
All Accessory Holes are Predrilled & Tapped!
Specifications, Features, and Supporting Components
Head Torque 65-70 Ft. Lbs.
Rocker Stud Torque 55-60 Ft. Lbs.
Intake Port Gasket, 1.310” x 2.180” w/ 3/8" radius, AFR #6820
Important: Do not port match your intake manifold to this Fel-Pro gasket, as they do not exactly fit AFR heads.
Exhaust Port Gasket Fel Pro #1406, AFR #6835
Head Gasket 350cid Fel Pro #1003, AFR #6800
400cid Fel Pro #1014, AFR #6802
Head Bolts & Studs Standard ARP, AFR #6310 & #6305
Head Bolt Washers Manley, AFR #6320
Stud Girdle AFR #6206
Suggested Manifold Victor Jr or Super Victor, AFR #5005 & #5003
Spark Plug Starting Range Autolite 3910
Combustion Chambers 76cc
Spring Pocket can be cut to 1.750, no deeper.
Valve Spacing Standard
Rocker Arms Standard
Valve Angle 23º
Angle Mill (milling available) .008” per cc
Flat Mill (milling available) .006” per cc
Pushrods 5/16” Hardened, AFR #6601 thru #6604
Please choose your selection in the drop-down menu below:
Race Ready CNC Strip Porting:
| Runner Volume |
Chamber Size |
Part # |
Plug Type |
Exhaust Type |
| 220cc |
76cc |
1060 |
Angle |
Standard |
| 220cc |
76cc |
1065 |
Angle |
Spread Port |
| 220cc |
58-76cc |
1066** |
LT4 |
Standard/Reverse Cooled |
| 220cc |
66cc |
1061 |
Angle |
Standard |
**Must Specify intake bolt pattern and chamber size (58-76cc). Call for info and pricing.
Competition CNC Strip Porting:
| Runner Volume |
Chamber Size |
Part # |
Plug Type |
Exhaust Type |
| 220cc |
76cc |
1110 |
Angle |
Standard |
| 220cc |
76cc |
1115 |
Angle |
Spread Port |
| 220cc |
58-76cc |
1127**
| LT4 |
Standard/Reverse Cooled |
| 220cc |
66cc |
1116 |
Angle |
Standard |
**Must Specify intake bolt pattern and chamber size (58-76cc). Call for info and pricing. | 
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