How should engine position and driveshaft length be handled on a 700R4/LS swap?

Here is what the documentation says. Each point links to its source; details depend on your exact computer, harness and transmission.

• ChevyHardcore gives the 700R4 case length as 30.75 inches (29.875 inches for the Corvette version) with a 27-spline output, and notes it is the same length as a TH350 only when the TH350 has a 9-inch tailhousing. (Chevyhardcore)

Confirm against the instructions for your exact parts before wiring. More: Transmission control in our tuning guide.