I had an '82 K20 Siverado Suburban, w/the 6.2 Diesel. After Generous Motors put the THIRD motor in it, I called "Calfrope" & sold it. The guy who bought it dropped a 350, & drove it for several years. The problem was it had a vehicle-mandatory 4.11 rear/front end, which drove the poor Weasel a LOT faster than it wanted to go. The top speed of the 6.2 was about 45-50, at 65 the motor was in pain, & anything faster than that, you were playing w/fire. Diesels work best in a rather narrow RPM range, generally 1800-3000 RPM. I didn't know any of this, but I learned the hard way. NOBODY made a small V-8 Weasel either, not the Brits, the Krauts, the Americans, NOBODY. They do now, but back then a diesel was basically a 4, 5, or 6 cyl proposition. THAT shoulda told me something right there. And, NO, GM, you CAN'T weaselise a gas motor. Oh, yeah, you can if you wanna have a top rate diesel mechanic come & live w/you, but I didn't have a spare house for him to live in....I had Bethany's husband, Corey take the Mighty Valdez a couple weeks back & give it a top to bottom going thru. It now gets 13-14 MPG, a lot better than the 9 or 10 it was getting.. The 6.8 V-10 just doesn't know how much Oompf it really has....My wife & I gave them a good Christmas. When we both "Kick the Bucket", the whole ball of wax goes to them. The house, yard, cars, guns, coins, they get it all. I always told Bethany I'd always take care of her, & I always intended to keep my word. She is, after all, the closest thing I have to a daughter, & Corey-Well, I could hardly do better than him for a son. We were also determined not to let them get hung out to dry like my sweet, loving sister did to me. She's a lowlife, pure & simple...