[chumbucket]

CT, I actually helped someone do that conversion. Sea Drives are basically a Johnson/Evinrude Motor so it can be done. The down side? The mounting bracket along with tilt and trim units are obsolete through OMC. This doesn't mean there aren't parts to be had out there. The hardest parts to locate are the trim and tilt cylinders. The motor we converted, I ended up using a Merc trim cylinder that happened to be the same length and diameter. I just had to shave a bit off one of the rod ends to fit between the yoke. There are also a couple of companies selling Reman Sea Drive powerheads, but I'm sure if you go through that much trouble you'll want to go with more HP.