Air Flow Research - 1979-1995 Mustang - SBF 165cc Street Heads 58cc Stud Mount

For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal aluminum cylinder heads. Unlike some aftermarket heads, AFR’s Ford cylinder head (CARB EO #250-3) fits all your stock components; no special parts are required! With lightweight 8mm 1.900 intake valves, 1.600” exhaust valve, combustion chamber volumes of 58cc and 68cc, and 68cc exhaust ports, AFR’s new 165cc Ford aluminum cylinder head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part number 1402. Note: 1986 5.0L must have piston notched for clearance.