Fox Lake's CNC-Ported Cylinder Heads - Fox Trot
Manley came through with a set of valves for these heads. Both the intake and exhaust measure 1 mm larger than stock. The combustion chamber size checks in at 45 cc. Ford lists the Two-Valve chambers as 41-44 cc. The CNC-machine cuts each chamber identically, and the material removed enlarges it. View Related Article