Has anyone used pre-'70 bracketry/pulleys on a 360?

I just wanted to know because I'd like to keep my '68 Dart's original style radiator, water pump, pulleys and various component bracketry. It's got a '75 360 installed. The 360 harmonic balancers have a "deep" look to them, compared to the earlier flat-looking 273/318/340's harmonic balancers. I don't know if the earlier crank pulley will mount,......or even line up the belts correctly. Help?

Ok, what was the conclusion here. I have the same question...360 into '67 Dart 'vert w/273 now. I assume I have to use the weird 360 damper as it is a cast crank, correct? Do I have to use an early timing cover as well? I plan to use an early 273 water pump and would like to use the 273 brackets and pulleys to retain the 273 "look".

I think I have the convertor/flexplate/motor mounts sorted out. Going to use the original convertor with a B+M weighted flexplate and convertor hub bushing...Schumacher mounts.

Any help appreciated....Thanks, guys.

P.S. Anyone notice the early timing cover has an extra bolt hole thats not drilled in a 360 block?