Well, I finally succumbed to my "GT Addiction", and picked up a couple more tractors--both JD317s--one needs a new engine, one has a good running Kohler Magnum twin.
I picked up the one with the Kohler up in Arco, Idaho (what is it about Idaho and Garden Tractors??? I've bought 5 now from up there!!). It was about 250 miles away so it was a long day.
The guy that had it only has John Deeres, and he has several, including a 112, a 300, a 318, and just got a 330 diesel.
He let me ride the 330 and do a little mowing with it--all I can say is,
"Wow!! I gotta have one of these!!".
Anyway, I've sold 2 of my tractors, including the White GT 1650--I set the price high on it because I didn't want to sell it real bad, but the guy decided he wanted it and didn't quibble about the price.
So, I now have a couple JD 317s. The one with the bad engine had been repowered with a Kohler K321, and it is blowing oil out of the block somewhere. The PO had put a homebuilt loader on it, and cobbled the frame quite a bit, so I will probably use it for the parts tractor.
I'll post some pictures when I get a moment.