Transmission ID and lockup/non lockup verification needed

I have an engine and trans that I plan on putting into my dart in place of the original /6. yeah I know all you /6 haters are gonna whine about not going to a V8, but I already have a V8 convertible on the line to get restored next.
the engine was has a 78 id and it looks that the transmission might never have been removed or serviced. Rebuild time is here for the trans since I just got all the parts back for the engine to get done and am collecting info and parts for the trans.
I picked these numbers off the side rail
PK 515871 3989 8998

is it a 78? lockup? non lockup? and will a Transgo tf-1 kit (which I have ) work in the unit?