AFR SB-Chevy Competition Aluminum Cylinder Heads

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AFR Competition Package Cylinder heads provide the next step up in power production for just a few extra dollars. In the Competition Heads intake ports, exhaust ports and cylinder heads are all precisely 100% CNC ported for flow characteristics that can give the power you need to win. Airflow Research Completion Package Heads come complete and ready to run with AFR's proven components for maximum power and reliability.
All Accessory Holes are Predrilled & Tapped!

AFR 195cc SBC Competition Cylinder Head

The AFR Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2). These heads feature a 74cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications). The exceptional flow characteristics, ideal operating range of 2000 rpm to 6500 rpm, 23º valve angle, and standard valve spacing make this the perfect street head for 350 cid to 400 cid engines from 1955-86. Available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72º angle. No special parts are required.

AFR 210cc SBC Competition Cylinder Head

These reasonably priced AFR 210cc intake port small block Chevy angle plug cylinder heads feature 100% CNC ported intakes, and come with 100% CNC ported 66cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). 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 400 cid engines in bracket drag cars, sportsman oval trackers, and highly modified street class cars operating between 3000 and 7500 rpm (higher rpm ranges possible depending on combination of parts). No special parts are required.

AFR 227cc SBC Competition Cylinder Head

High flowing AFR 227cc intake port small block Chevy angle plug cylinder heads feature 100% CNC ported intakes, with 100% CNC ported 66cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). Standard valves are 2.100 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The 227 has 60/40 valve spacing and piston valve pockets should be checked. The exceptional flow characteristics and 23º valve angle make this the perfect head for 350 to 434 cid engines in drag cars, sprint cars, and late model oval trackers operating from 4500 rpm and up. 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.