Has anyone put a 4bt in a 67-72 chevy 4x4? I am seriously considering putting a 4bt in my 71 chevy longbed 4x4. I have a 700R4 with the front crossmember and motor moved forward to accomidate for the extra length. Anybody able to use any factory motor mounts in a 67-72 chevy? What about clearance between the oil pan and front diff? I hear that when bolting up the 700r4 to the turbo 400 flex plate you have to drill the turbo 400 plate for the 700R4 converter bolt pattern and find something to make up the 1/4" gap. I have also heard from Bowtie overdrives that as long as it isn't more than 1/4" forward from all the way back you can just pull the converter forward to the drilled 400 flexplate and it will still work. How did you hook the TV cable to the throttle linkage? Fuel mileage?..........I have 31X10.50's I beleive the gears to be 3.4-3.73(not sure) this is a street truck that I sometimes need 4X4 for a bad road when hunting or a slick boat ramp(it's not a mudbogger or rock crawler). I am looking at a 4bt with a liquid intercooler. I will add a 3200 rpm GOV spring. I will insulate the engine compartment and cab with 1/4" self adhesive duct insulation. I am hoping to have my truck get 22+MPG without rattling to peices or being too abnoxiously loud in the cab while driving. I've had a diesel isuzu, 2 diesel mercedes, and 1 diesel vw, but htis is my first try at "building" one......................Any advice?