318 to 360

Hey gang. been out of the shop for a while. But back in now and working on a slow project. I have replaced a 318 with a 360 in a 72 Val. I am at the point now where I am getting ready to fire it for the first time. Changed converter and plate. I checked everything today before I put in the Royal Purple break in oil in it. I then primed the system. lost about 4 quarts of the 8.00 a quart oil all over the floor. Seems it is comeing out of the oil filter/adaptor for the oil filter. I put new gaskets in the 90deg adaptor. But am unsure if I used the right ones. What do the gaskets look like that go under the bolt head and between the adaptor and the block where the bolt attaches? I need a little help. I dont want to waste any more oil.