got myself a nice oil leak

there are two different adapters for small blocks just as there is two different plates. Early blocks take a kit of three gaskets .One large composite, One composit covered metal washer for the bolt, and one 3/16 thick cork gasket for the bolt after it is slid throught the adapter. Make sure you remove the metal plate in the block for non adapter use and disguard. The new block such as magnums and crate motors including Restos and R-3's The blocks take a different adapter then the early blocks. The surfaces of the inner and outer gaskets are on a different level then the early blocks. newer blocks take the newer aluminun adapters . check to see you have the right adapter for your application. I had this problem when I went from an X block to a Resto and had to get a plate from a new dodge truck at the dealer. I have newer style aluminum adapters if needed.