MAST CYLINDER HEADS – BLACK LABEL LS7 – 305cc – 70cc CHAMBER – BARE – SINGLE – 510-209
Utilizes the Gen IV LS7 valve-train and intake manifold
Designed for any new Gen IV short-block with 4.125″ bore or larger
Uses a 2.250″ intake valve and 1.600″ exhaust valve
Has a 294cc intake port
Has 70cc combustion chamber
Has a deck thickness of .750″
***Due to the thicker deck and higher valve cover rails some beauty covers are not compatible.When using Corvette (Y-Body) front accessories alternator may need to be clearanced.