i am installing a 3.7 mercruiser in my boat this weekend i am removing the 3.0 , i see that the transome plate looks to be a different size. i have the transome plate for the 3.7 and i am wondering if the mounting holes are the same on both. also i should add that the boat once had a 3.7 at one time because i can see the 4 s s lag bolts are there in the exact pattern of the old 3.7 motor mount. thanks in advance