Just noticed that there is an update, 8.2.0r3 available now for Silverfast.
Apparently this updates includes profiles for Kodak portra 160 and portra 400.
General: New profiles for the Kodak Portra 160 and 400 for many current scanners (Canon 9000F, Canon 8800F, EPSON V850/V800/V750/V700/11000XL/10000XL, Microtek i900,Nikon LS 8000/9000/5000/4000/50/40, Plustek OF120/8200i/7600i, Reflecta MF5000, Reflecta RPS7200).
Apparently this updates includes profiles for Kodak portra 160 and portra 400.
General: New profiles for the Kodak Portra 160 and 400 for many current scanners (Canon 9000F, Canon 8800F, EPSON V850/V800/V750/V700/11000XL/10000XL, Microtek i900,Nikon LS 8000/9000/5000/4000/50/40, Plustek OF120/8200i/7600i, Reflecta MF5000, Reflecta RPS7200).