I picked up a used ST3500 from a C5 to go in my sons Lt1. The converter came without mounting bolts, the stock ones are too small. Anybody happen to know what size bolts I need?

 

C5 vette? C5 is the LS1 years right? and the LS1 converters are different. Something about the front snout that engages the pump being longer if I remember right.
I have a extra set of bolts that came with my Yank, I used the the ARP's listed for the 700R4/4l60E trannys.

 

Yank told me someone must have changed the mounting lugs. They ended up being 7/16 fine thread.

A C5 LS1 will enterchange with LT1's. They are different from the LS1 Fbody.

 

Ah, good to know.