Hello All! Question for the pro's here, I am new to the boating world so all the help I can get is much appreciated. I have a 1986 Rinker 186 with 3.0L Mercruiser with Alpha One outdrive. Motor is done, needs rebuild. I have found a nearly identical boat with a bad hull (stringers and floors rotted badly) but it has an excellent Mercruiser 4.3L and Alpha One outdrive that is an excellent deal, much cheaper then a rebuilt 3.0L. Question is, to do the swap would I swap the complete 4.3L with Alpha One over to my boat (due to gear ratio differences)? Is there anything I need to be on the lookout for? Any other parts that I would need to buy? Would the 4.3L mount differently? Thank you!