Same thickness as OEM GM pan gasket. This is a precision, die-cut gasket, made exclusively for Jerry's Gaskets, utilizing original engine drawings for dimensions It has been improved by increasing the width of the gasket to take full advantage of the mating flange area to help prevent leakage common to the OEM-GM gasket. Made from Pro-Formance/MicroPore, non-asbestos gasket material with a fully cured nitrile butadiene rubber binder, 12~20% compressibility for excellent sealability and a max temp rating of 550F.

See part #406 in the diagram.