Early 904 to later slant six conversion.

Charrlie_S said
Why don't you like the bushing? The bushing is a lot less mony that a special converter mod.
PS: there is also a late flex plate, and an early flexplate. The bolt pattern is the same, but the center hole is a different size.
PPS: The early flexplate with the small center hole is getting hard to find, but there is an adapter bushing to enable the late flexplate/flywheel to be used on the early crank.

I just don't like the idea of the bushing. I know that some do, and that is their choice. Me, I'd go with the converter modification, and I'm not made of money either. And while they were doing the mod, get it rebuilt to ensure the converter was in 1st class condition. Again, just me.