4L80E question

[BBC71Nova]

I forget the years but they changed the location of the coolant lines at some point. I heard the older style(<'97 maybe) is easier to fit into the tunnel on some models without "tweaking" of the tunnel.

Jake@Jake's Performance was very helpful when I had a lot of the same questions. There's more info available over on Chevelles.com forum too since autos are more prevalent there.