MAST CYLINDER HEADS - BLACK LABEL LS7 - 305CC - 70CC CHAMBER - BARE - SINGLE

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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.