I belive many commander owners have done the exact same 350 conversion and kept the paragons.
I've been aboard Tom Michael's
35 and he installed 350s and bolted on the 327 stuff to it .
That was now about 15 years and 600 hours of run time ago and still going good.
Timtation has 350's replacing the 327F's with the original transmissions rebuilt. Swap was around 2003.
I believe they’re limited to around 260hp based on what I’ve found. A stock 350 would be fine.
Are you looking to do a complete repower or just long block and trans rebuild?
so the paragon would bolt up to a 350 ok? does anyone know if there are power limitations to the hf-7?