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The Cometic MLS head gasket for Pontiac 400/428/455 V8 (4.380 inch bore) is a multi-layer stainless steel gasket compressed to 0.066 inch. Embossed outer layers coated with Viton provide heat- and chemical-resistant sealing, while the uncoated stainless center shim permits thickness customization. MLS construction handles aluminum-to-aluminum or aluminum-to-cast-iron interfaces, resists corrosion, rebounds under load, and reduces clamp load to minimize bore distortion.
Cometic Pontiac 400/428/455 V8 .066in MLS Cylinder Head Gasket - 4.380in Bore
