you will need to shorten the driveshaft, change the trans yoke on the driveshaft, there are two yokes so make sure you get the right one, one is bigger on the outside, you will need to change shifter as PG's are only two speed. not sure about the cooler line, dont know if there the same size or not. did you get the dip stick with the TH-400? if you want it to kick down when you step on it then you will have to wire in a kickdown switch. Vac line for the modulator, and no it wont fit the Chevy motor with out an adaptor. when you get ready to swap for the Chevy look me up and I will help you with that as I did mine years ago. pretty easy to do. I see your in CA, where?