Looking at a Trans for Victoria need input.

I am not sure you can do it for this particular conversion. There are internal differences on the converters that make it hard to go this way (or so I have been told). I have had a converter shop go the other way (welding a late front to an early back).

You would need a Dacco 962-S convertor or an equivalent convertor. It is designed to use the with the 68 up transmission TF904 and the 1.550" pilot bushing used on the 1960 thru 1967 small block. This is in the 2012 Dacco catalog.