3 pages of van BS… GTFO ******
The chevy patten is a standardized layout from the beginning of time to the LS. chevy 90 deg they call it. I found the layouts from companies that build adapters, bell housings and such that post it. there is like a million results for the chevy pattern.
the 1.8T, as anyone would assume was a lot harder. I found a guy who swapped a 1.9L into a vanagon with some domestic trans behind it. he posted the drawing. I will continue looking for more results to put confidence in it. Also we could measure out a few key points and see how they match up to the drawing. This weekend I am going away for a mini vacation. Next week I will load up the drawings in solidworks then over define it with a ton of measurements, then get the caliper out and start matching them up on the blocks to verify.
as long as the crank centerline and the input shaft are dead nuts, the converter has some wiggle room, as long as the adapter is made 100% concentric too.