GN1 Aluminum Heads 3.8 Liter

Casting number

INTAKE SIDE
Features of Note: Notice the large intake ports Notice the very solid shaft arrangement of the Jessel style T&D rockers No EGR provision
TOP
Features of Note: Notice how the Jessel style T&D rockers are setup with a solid pedestal mounting and adjustable shaft mounted rockers (that are offset for proper geometry) Notice they still take standard "rim bolted" valve covers (although they will have to be taller to clear the rockers) Notice these heads are mounted on a Stage I block drilled for 6 bolts per cylinder

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