Cylinder Head, each, BB Ford, 390 and 428CJ, aluminum, bare, 2.09'' int. and 1.66'' exh. 170 cc runner, 72 cc chamber

This lightweight aluminum head saves approximately 36 lbs of weight.  It can be used with multiple bolt pattern headers and most factory exhaust manifolds.  It accepts 390/427LR/428 style 2.09” intake and 1.66” exhaust valves.  Features include hand blended valve pockets, hardened valve seats for use with unleaded fuel, bronze valve guides, threaded inserts in rocker shaft holes and exhaust manifold holes.