I have a 72 Bertram 28' twin inboards. I was told they are 351 Windsor Fords. But the plate I found says 302(is there an easy way to confirm which it is ). My real question is how simple is it to reverse the oil pump? I want to put a standard rotating motor in where the counter rotating was? I've heard this is all I need to do to make reverse become forward and vice versa? Is that correct?