Cool, thanks for the replies
Utwheeler, that's food for thought. I really had my heart set on a big-block though... an olds 455 will put out just a squeek over 500 lbs/ft of torque. While I was searching this forum I saw quite a few references to large diameter tires needing a lot of torque, especially for mudding. A 350 does fine for you, huh? Maybe a big-block would be overkill, I dunno... I would still prefer one, but I may have to get a 350 instead to save money. Thx man.
Tim, I'm pretty sure we're both right about the Olds diesel thing. I have a friend who says his brother had one stock in one of his old Chevy PUs, so that's why I was pretty sure they existed. To make sure I snagged the following quote from the Olds FAQ at 442.com...
"Diesel production continued until 1985 when all diesels were discontinued for the 1986 model year. Diesel parts were being handled by Detroit-Diesel-Allison, and not Oldsmobile. Both AC-Delco and GM Goodwrench rebuilt 350 diesel engines are available. In terms of rebuilding, try a competent diesel truck mechanic. Olds diesels were also used in Chevy trucks."
So it seems like they were Olds diesels, but the parts were handled by Detroit-Diesel-Allison. That's pretty cool, I didn't know that. I guess the early olds diesels were pure junk from what I've read.
And finally, thanks for the GREAT idea of using a 500 Caddy motor, they're cheap and they'll bolt right in without much trouble I think. I've never looked at one, but they have the chevy tranny pattern, right? Awesome idea. Thanks a lot! [img]images/icons/smile.gif[/img]
BTW, want some interesting (or not) trivia related to the diesel overbore? "The 350 diesel block with a 425 crank and the stock bore size block (4.057") will yield a bulletproof 411 CID small block. The 350 diesel block can be safely overbored .125" without sonic testing, to make a 437 CID small block. The 350 diesel block can be bored out to 4.25" when sonic tested. With a shaved down 425 crank and a 3.975 stroke, that works out to 451 cubic inches." And... "The diesel mains have all the metal of a solid-web block, plus all the metal that should have gone in those windowed-main gas blocks. Pretty hefty. Good for nitrous and turbo/super charger applications. The crankshafts are supposed to be nodular."
Thanks for the info guys, I'm still interested in what was behind the Olds diesels in Chevy trucks... especially the bolt pattern of the tranny.