Hi 534BC,
thanks for You reply.
i was lucky to buy a 74 Cad500 on Ebay for 71 Euro and I want to use it in a boat with marine transmission.
The only bad thing about Cad engines is that there is no Market for marine hardware like manifolds ore Bellhousings to drive a marine transmisson.
So I have to try make things from a chevy big block fit. Don`t You think i could juse a adapter like the one I found on this site:

My english isn`t that good. When You say flexplate do You mean the part for the clutch?
Because for the marine trans I `d only need a damperplate that is put on the flywheelweight that a friend would make for me.
Please answer in the forum because i think somethings wrong with my e-mail.
Thank`s a lot
Joe