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Big Block Gx390/420/440 billet head
-Custom 5/16" pushrods
-Small block Cam
-Pre-tapped for 1/8npt pulse fitting
-Extra Material to move head bolts (extreme builds)
Phat Head Big Block Gx390/420/440 billet headWider or is it widest??? We took the Moflow 36 27 and spaced the valves another . 100" wider to accept HUGE valves! This head is designed for ALL OUT builds! Comes with rocker shaft and Intake manifold for Mikuni Rubber flange mount (75mm). Builders head, bare machined head. Needs seats, guides, valves, retainers, springs Comes with Intake and black venom rocker shaft (rockers not included).
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