Edelbrock Performer Complete Cylinder Head for 4.0L Engines

This Edelbrock Performer Complete Cylinder Head is machined to accept either distributor or coil pack ignition. Ededlbrock cylinder head features better flowing intake/exhaust ports along with a modern combustion chamber design and back-cut and swirl polished valves. It retains the stock valve angle, push rod length and valve cover rail height for use with factory components and off the shelf accessories. It also features larger reinforced rocker bosses for improved strength at high RPM and Heli-Coil threaded inserts in the manifold bolt holes for added strength. A 3/4" deck throughout the head also promotes stiffness and durability.

This Performer Cylinder Head is designed as a bolt-on performance upgrade for 1987-2006 Jeeps with a 4.0L inline six cylinder engine. The Performer Jeep 4.0L is designed with 1991-2006 4.0L intake port locations and must be used with 1991-2006 intake manifold. The Performer Jeep 4.0L is designed with 1991-1998 4.0L exhaust port locations and must be used with 1991-1998 factory header or aftermarket exhaust header. This cylinder head will also fit 1976-1990 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination.