I want to put a 200 behind a new 4.2L I-6 outta 2002 Trailblazer. This is going in my '55 Chevy truck for those interested. The bell housing pattern is different and the starter is at about the 10 o'clock position if you are looking at the flywheel. Does anyone cut off bell housings totally and weld/bolt new ones on? Or can I have an adapter made? If the adapter route is chosen, what is the usual course of action for "spacers" between the flex plate and torque convertor? TIA -Chuck