Steel Pre-Flattened O-Ring Head Gasket Suit SB Chev Small ChamberedAluminium Race Heads, 4.080" Bore, .039" Compressed Thickness

• For small chambered aluminium race heads, and some Vortec engines.
• Will not fit conventional OEM-type combustion chambers.
• No 400 steam holes.
• Cannot use on aluminium block with liners.

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.