Mr. Gasket Ultra-Seal Header Gasket - 2.150 in Round Port - Steel Core Laminate - Big Block Chevy - Pair HASZ15SM 1/2-20 in Right Hand Female

1/2-20 in Right Hand Female Thread

The 360° full floating arm gussets and stretch knit back gusset allow for maximum mobility

FIA FT3 Approved Molded Hard-Rubber ALL-FUEL Bladder

Cut down to any size

Mr. Gasket Ultra-Seal Header Gasket - 2.150 in Round Port - Steel Core Laminate - Big Block Chevy - Pair HASZ15SM 1/2-20 in Right Hand FemaleMr. Gasket Ultra Seal Exhaust Gasket Set 5912 Large Race 2. 15 in. Port Diameter Graphite Impregnated Facing Steel Expanded Metal Core Superior Tensile Strength Resists Cracking Withstands Intense Heat Resists Deteriorating Anti Stick Properties Easy Removal For Disassembly Applications include: Bel Air, Biscayne, Blazer, Blazer K5, Brookwood, C10 Pickup, C10 Suburban, C15 Pickup, C15 Suburban, C15 C1500 Pickup, C15 C1500 Suburban, C1500 Pickup, C1500