Pair of Assembled Air Flow Research Aluminum 205CC Cylinder Heads with 58CC Combustion Chambers and Enlarged, 73CC Exhaust Ports for Nitrous Injected Small Block Ford Engines without EGR.

If you're looking for the world's finest street/strip head available, AFR's 205cc aluminum cylinder head is your answer. With lightweight 8mm 2.080" intake valves, 1.600" exhaust valves this head moves tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. With combustion chamber volumes of 58cc, accompanied by 70cc exhaust ports which are raised .125" higher than stock, AFR’s new 205cc is the ultimate choice for 331 through 392 engines operating from 3500 RPM to 8000 RPM. AFR’s trademark 3/4” thick head deck makes them ideal for heavy nitrous or blower applications. Features 73cc ultra high flowing exhaust ports.

Cylinder Head Specifications:
Intake Port Size: 205cc
Exhaust Port Size: 73cc
Combustion Chamber Size: 58cc
Intake Valve Size: 2.080"
Exhaust Valve Size: 1.600"
Stud Mount Rockers: 7/16"
EGR: No

*Small block Ford engines refers to 289/302/351 Windsor engines. 289/302 engines require head bolt bushings.
*High flow 2.080 valves will require aftermarket pistons notched for valve clearance.

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