Here's a Lux motor in an El Camino
http://www.clubhotrod.com/forums/sho...light=Cadillac
CanadianAl put a 500 in his T-bucket
http://www.clubhotrod.com/forums/sho...light=Cadillac

Gary, several years ago, I was toying around with the idea of using an Eldorado or Toronado transaxle complete in the rear of a small pickup truck. If a guy had an S10 or Plymouth Arrow or Dodge D50 or Ford Courier or small Toyota or whatever, with a roached motor/trans.....
Remove the bed. Whack the frame off behind the cab, leaving stubs to weld to.

Cut the Eldorado/Toronado frame off at the firewall. Remove all sheetmetal. Leave radiator in place. Remove steering box and drag link. Fabricate receptacles for tie rod ends at frame, so toe-in/toe-out could be adjusted. Place rear wheels so that stock wheelbase of the truck would be maintained and tires/wheels would look right in the wheelwells of the bed. Weld Cad/Olds frame stubs to truck frame stubs. Rear track will be much wider than stock truck track, so split the bed down the middle and add material to widen the bed and cover the tires properly. Now, the bed will be wider than the rear of the truck cab. Cut air intakes into the front of the bed and duct the air into the Cad/Olds radiator. Everything stock. Stock radiator, stock shroud, stock fan, stock fan clutch, stock water pump. Cover bed with tonneau cover so no nosey hot rodders can see what powers "that little black truck that goes like stink". Use expanded metal to fabricate a rear gate. This is where the air from the radiator will exit.