I have decided to go ahead and sell the 5.3/4L60 combo I had put together for my '74. I have a 5.3 w/DBW throttle body from a 2001 Yukon. The truck had about 96K on it when it was wrecked. It looked clean under the valve covers and in the oil pan when it was pulled (the yard sucked the fluids from it before I got it). I have a 4L60E with 0 miles on it to go with it- the trans was gone through by the guys in the service shop wher eI work (Chevy dealership). I have put a CTS-V oil pan on it, with the correct pickup, windage tray, etc. as well. I have a resealed P/S pump, Dirty Dingo mounts, a new harness from
www.fuelinjectionconnection.com (Robert flashed the PCM for me and tested the pedal and TAC module also), Kwik Performance high mount A/C bracket with a Sanden compressor and associated idler pulley, new in-tank Delco fuel pump, Delco spark plugs, wires, 2003 Silverado SS 3 piee engine covers (new), and a 1991 Suburban cluster modded with a GM sports Salvage tach/fuel gauge. I have almost everything that would be needed to drop this into a square body. Looking for $3500 for everything, and I really don't want to ship. There is probably a lot I have forgotten, but this is pretty much a complete package.
I am in the DFW area (Richardson is on the north side). Local pickup would probably be the best idea.