I've probably done a dozen or so transit repowers, a few memorable ones stand out, one a brand spanking cab /chassis for the local Ford Dealers with a 250 x-flow that needed a firewall recess along with the extended front ( I presume it got a ford 12/12 warranty being new ) , also a 400 chev one for Tullochs rally car tow vehicle, several for plumbers/shearers work vans. Had one with a 250 falcon for a tow vehicle myself that I ran in a flying lap at Teretonga after clutch let go in the Cortina, never again, it spent most of the lap on two wheels trying to fall over. Diff ratios were poor for V8's, but I found a Falcon diff with same axle splines as Transit, so cut bearing carriers off falcon diff and slide the transit axles and tubes over the falcon ones- great ratio & keep transit floating hubs & stud pattern... job done!