AFR SB-Chevy Race Ready Aluminum Cylinder Heads

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Airflow Research Race Ready Cylinder heads offer outstanding performance on the track at a reasonable cost. Race Ready heads are 100% CNC ported to provide terrific flow characteristics for big power gains. Of course Race Ready heads come complete and ready to run with AFR's proven components for maximum reliability.
All Accessory Holes are Predrilled & Tapped!

AFR 210cc SBC Racing Cylinder Head
	These reasonably priced AFR Race Ready 210cc intake port small block Chevy angle plug cylinder heads have 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 2.080 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 Racing Cylinder Head
	High flowing AFR 227cc intake port small block Chevy angle plug cylinder heads have 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.