Im going to have to do an engine swap on a Cajun boat as the Merc. 150 has a blown powerhead and I just picked up another boat with a fresh rebuilt Merc. 115 and I am wondering if it would be safe to use a lifting ring on the flywheel stud to pick these motors up and support them through this transition,the 115 is a 1971 and the 150 is a 1978,any help would be greatly appreciated and thanks again.