/6 headers

After getting the tape out, one of our conserns would be the back of the water pump fin if 170 has that, and the large starter. It would be very close to both if thats the correct drop. This would be A very easy fix. We have 1 1/2" space to raise the tube from its orignal 225 we set these up on. We dont know what all the units sold, went in or with what motor they use. No calls so far about the fitment. Have A good day, keep yall up dated Don