Cometic ::::: Cometic Head Gasket for GM BB 396-502 Mark IV 4.375 Inch

Cometic Head Gasket for GM Big Block 396, 402, 427, 454, 502 Mark IV & Bow Tie Hi-Perf. - 2 Each End Lower 3 Open 4.375 Inch

These come in varying bore sizes to fit your engine. These are also available in custom thicknesses from .027" to .120". Please call or email us for pricing and availability (typically a custom gasket can be shipped in 2-3 days).