Mr. Gasket Head Gasket - Steel Shim - 4.370 in Bore - 0.020 in Compression Thickness - Big Block Chevy Fuel Pump Longer exhaust studs improve thermal

Longer exhaust studs improve thermal durability

4514SP-16 spacers and 1401N-16 rocker nuts

Blocks are 2-1/2"W x 5"L

16 or 18 gauge material

This product is not legal for sale or use on emission-controlled vehicles except when used on a dedicated race vehicle

Mr. Gasket Head Gasket - Steel Shim - 4.370 in Bore - 0.020 in Compression Thickness - Big Block Chevy Fuel Pump Longer exhaust studs improve thermalMr. Gasket Head Gasket 1131G Embossed Steel Shim Gasket Bore 4. 370 in. 0. 020 in. Compressed Thickness Head Gasket 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 Suburban, C20 Pickup, C20 Suburban, C25 Pickup, C25 Suburban, C25 C2500 Pickup, C25 C2500 Suburban, C2500 Pickup Vehicle Applications: 1975 1978 GMC C15