67 Engine to 72 Trans Question

Charrlie_S said

All three options are viable. My personal opinion would be to swap cranks, if rebuilding the engine, anyway. I have not had any luck finding a machine shop that would/could drill the crank pocket, and the crank would have to be removed, anyway. I have several "hybrid" converters, but they are race units, and expensive. I don't know the price range for a "stock" style hybrid converter.

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200.00 bucks local price.

You can put a larger snout on an older converter but you cannot fit new style internals 27 spline or whatever into an early 19 spline case.
That's what I was told when I asked yrs ago.
Another time ... using an early crank motor with a lockup 904 I just used a mic and measured another late crank register and ground open the old one till it fit the new convertor..... another time 'teenager' before I had shell/snout swap convertors.... I used fence pipe around the snout of the early to layer crank. I've done this a few time. Must have had 6 225's in my slant days..