Moroso has introduced an oil pan gasket for BBC Mark 4 engines that utilize a race pattern oil pan rail, part #93156. A “Race Pattern” pan rail bolt pattern is that the bolt holes are in-line with the main caps, such as Moroso Nos. 20385, 20485, 21600, 20376 & 21581 oil pans.
Moroso also introduced a transmission gasket for the GM 4L80E, 700R4 automatic transmissions, part #93104. Like all Moroso Perm-Align gaskets, it is manufactured from 40 durometer, 3/16˝ thick rubber that is vulcanized to a rigid steel frame. The extra-strength design will not leak, split, fail like OEM, stock or inferior quality aftermarket gaskets. Requires no sealant, which allows for quick removal and installation of transmission pans. Comes one per package.