Speedmaster PCE349.1011 Oldmobile 400 425 455 Intake Gasket 1356 2.40x1.40x0.060

Oldsmobile 400 425 455 Intake Manifold Gasket Set (1356) 2.40" x1.40" x0.060" Most Speedmaster intake manifold gaskets have Printoseal construction, which puts beads of special elastomers around the ports for extra sealing power. They also feature a non-metallic, rubber-fiber base material that resists gasoline and alcohol, while allowing engine builders to precision-trim around the intake ports. Printoseal construction puts beads of special elastomers around the ports for extra sealing power Rubber-fiber base material that resists gasoline and alcohol, while allowing engine builders to precision-trim around the intake ports.