I agree, twinhueyman, the CT7-8 (S-92's engine, right?) is IIRC a 2500ish hp machine. Would be nice to see it fitted to a Seahawk, but I wonder if there would not be significant transmission limitations. I recall the T-58's on the SH-2. The original H-2 was single engine. When it got two T-58's, , when it went twin.
I found on the GE website no page for "marinized D" (401D versus 701D). This has my curiousity up. I'll try and email a few friends who (still, I hope) know what NAVAIR has in mind for the Romeo, in terms of engine upgrade ... if anything. The T700 401 to 401C upgrade was a good idea at the time.
Yes, 401 was marinized version of 701.