66 valiant with newer slant six

65 Cuda 340 said
No need to replace the flywheel - just machine the hole bigger so that it fits a later crank. Bolts are in the same place. Did that on my old 65 Valiant with 170 when I swapped in a mid-seventies 225.

Thanks man. I’ll consider that option. Trying to track down a 225. My manual 3 speed prob won’t hold up to a lot of power but would be nice to have a 2 barrel carb at least. Sounds like if I do that I’ll need to grab the v8 throttle and plate and get that bolted up. Not as bad as I thought it was going to be.