Check this one out on ebay

Skools Out: .....Let me get this straight....you can buy a conversion kit and replace an old OMC drive with a volvo lower unit?.....How about the engine? What kind of engine did OMC have?

I've seen so many nice used boatd for sale and then I see that it has an OMC drive......darn! I would have been interested if it did'nt have that drive.