ok so i blew my 350 in my 1977 chevy g20. so i got a.. 400small block off a friend. the casting number said it is a 400 block from 70 to 73 from a truck. but the starter on it dont fit the right way. it hits the flywheel. and i tryed shimming it out but i put 4 on and still hits. i have it very rigged right now lol but i want to get the proper starter for it. i tryed auto zone but non of them worked. can anybody give me a part number or something.? thankssss