MAST CYLINDER HEADS - BLACK LABEL LS7 - 285CC - 70CC CHAMBER - BARE - SINGLE

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MAST CYLINDER HEADS - BLACK LABEL LS7 - 285cc - 70cc CHAMBER - BARE - SINGLE - 510-207

• 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 2.200" intake valve and 1.600" exhaust valve

• Has a 274cc intake port

• Has a deck thickness of .750"