No oil filter issues with mine, stock 96 up K-member or you can use a tubular. I used 96 hydro boost. I actually need to change my oil pan I'm running the Mark VIII pan and there is no way to change the starter out with that oil pan and using a stock K-member. I modified the fox tranny cross member to work but I have a tremec 3650 mount that I am going to put in as soon as I can. Keep everything from the donor you can just in case you need it down the road. I didn't have a donor I had to piece my together.