B SERIES SUMP GASKET - FELPRO BRANDFEL PRO PermaDryPlus B Series Oil Pan Gasket Set. As with any engine, leaks can develop as time and miles go by. The oil pan gasket is a common leak found on the B series engines unfortunately, many owners or garage may try to tighten the oil pan bolts to stop the leak. This makes matters worse, as the oil pan on these engines have raised dimples that are stamped in the flange to prevent over compression of the gasket on the assembly line. By