I would like to swap a GM 4200 inline 6 in my car and turbo it and I have a question about the transmission bolt pattern. Does the 4200 share the same bolt pattern as the 3800 Series II v6 engines. I would like to be able to use the turbo 400 and Gearvendor I already have and I saw that there is now a company that makes an adapter for the 3800's so I am hoping they are the same. Thanks