GT40 5.0L Cylinder Head

The Ford F3ZE-AA is a GT40 cylinder head, a performance upgrade for various Ford 5.0L engines. Constructed from durable steel, these heads feature a pedestal mount rocker design and accommodate half-inch head bolts. The F3ZE-AA casting is recognized for its GT40 designation, indicating enhanced airflow and combustion characteristics compared to standard heads. These specific heads, identified by the F3ZE-AA casting number, were commonly found on performance-oriented Ford applications such as the 1993-1995 Ford F-150 Lightning and were also utilized on Explorer and Mountaineer models equipped with the 5.0L engine. Some sources also indicate their use in OMC Cobra and Volvo Penta marine applications. While not a complete engine assembly, these cylinder heads serve as a significant component for engine builders looking to increase performance. They are often milled to achieve desired combustion chamber volumes, with reported figures ranging from 58cc to 65cc. Upgrades to springs and camshafts are common when installing these heads to maximize their performance potential.