I have a 98 GMC Grumman stepvan, last week the motor blew. I was lucky to find a Chevy cube truck (government surplus) very clean and low miles, Because the truck carcass was going to the junkyard we were able to pull the motor and trans fully intact. At this point I sent the truck to the mechanic to complete the swap. This morning the mechanic called me and told me, as he began to dig in, he soon realized the existing blown motor was actually a 6.2 diesel. My question: is it worth it to convert the 6.5 and use it, or am I better off finding a 6.2 which I really don't want to do. Keep in mind The 6.5 has less than 15,000 miles on it, also I am hemorrhaging money every day the truck is idle. I look forward to your suggestions. SD