I need to get a big block 727 to put behind a big block stroker motor (approx. 600 hp street driven car). Is there any particular year or range of years of 727's that are better than others for this application? Should I look for an original 383-4 hp or 440-4 hp trans. or would a non-hp trans. suffice? A friend of mine has a 727 from a 1972 440 C-body that I can get if need be otherwise I will look for whatever is recommended.