Yep, a 6V53T would be a good choice if it fits easily. A normal 6V53 without turbocharger is only as good as a 4-53T (T for Turbo), but with the extra weight penalty.
I had a one ton truck with a 6V53T actually twin turbos, it was a fun truck, and a hood full. Even so I don't think a 6V53 conversion in a 1 ton truck is a great idea it's a lot of weight and size, even if it does fit and work.
You can check out my photo link for pictures of it, and if you have a 61 ford engine compartment to compare yours to you can get an idea how well it will fit, as it just fits the Ford without any firewall modifications, and with very minor inner fender trimming.
Grigg
