Oil filter adapter

Some of the aluminum are for magnum blocks they are different than the early LA. The offset on the mounting flange is different. I ran into this with my R-3 block. I had to find one for a magnum because the LA would not seal. Be careful on your application. I have the early cast LA the going price is $45 shipped in the US lower 48. No gaskets included

Also there are three gaskets two for the bolt. one thin and a thick cork on the inside and one large for the outer diameter