Hey guys this is the only place where i think any one can help me... I have a 23 foot 89 chaparral with a cobra drive omc i/o and a 350 2 bolt main motor any how i blew up the motor and just bought a 350 4 bolt main motor... me and my buddy where looking at it we changed the freeze out plugs and such.. we started rounding up all the parts and the fly wheel has a bolt pattern for a 2 bolt main and will not even fit on the 4 bolt motor so the question is what can I do? should I get a new fly wheel?? also the spleen drive is obviously different as well. if you guys could help me out that would be great...what can I do to make this work ( btw my buddy is the machnic not me so forgive me if i get some terminology wrong).