25534393 - Bare C5R Racing Cubed Cylinder Head

As-Cast C5R Racing Cubed Cylinder Head Spec:
• The images shown are of a fully machined head. These images are for reference only. This head is only available as-cast and un-machined
• 355-T7 'as cast' aluminum racing head
• Proffesional porting and machining of combustion chambers required
• No seats or guides are included
• C5R Rectangle port design - requires aftermarket rectangle port intake manifold
• Designed for big bore (4.100" minimum) LS7/C5R/LSX blocks
• 210cc "as cast' intake ports
• 70cc "as cast" exhaust ports, same as production LS6
• 30cc "as cast" combustion chambers
• All fasteners are metric
• Capable of over 800 HP
• Standard LS exhaust port design