Steel Pre-Flattened O-Ring Head Gasket Suit BB Chev, 4.370" Bore, .039" Compressed Thickness, One Coolant Hole Per End

• Fits Mark IV Block
• Pre-1971 Blocks may require modifications
• Fits Gen V Block
• Fits Gen VI Block
• One coolant holes per end.
• Three lower coolant holes

Fel-Pro wire ring head gaskets, with a stainless steel combustion armour, proprietary-coated composite facing material and a solid steel core deliver and unbeatable combination of quality, capability and value making them the single best choice for the vast majority of racing and street performance engines.