Exhaust Manifold Gasket Set Pontiac V8 400/455 Exhaust Header / Manifold Gasket - 1.845 in Round Port - Multi-Layer Steel - Pontiac V8 - Pair

Exhaust Gasket - Buick V8 400-455 Exhaust Header / Manifold Gasket - 1.313 x 1.938 in Rectangular Port - Graphite - Buick V8 - Pair

Exhaust Gasket-PONTIAC V 8 326-455 Exhaust Header / Manifold Gasket - 1.125 x 1.938 D Center Port - 1.500 x 1-15/16 in Oval End Port - Graphite - Pontiac V8 - Pair

400-455 Pontiac Exhaust PORT SIZE 1.88in DIA Exhaust Header / Manifold Gasket - 1.880 in Round Port - Steel Core Laminate - Pontiac V8 - Pair

4.200 MLS Head Gasket .040 - Pontiac 400-455 Cylinder Head Gasket - 4.200 in Bore - 0.040 in Compression Thickness - Multi-Layer Steel - Pontiac V8 - Each