Installation of Teledyne TCM TSIOL-550A engines, increase takeoff weight to 7105 lbs., and the installation of McCauley 3AF36C514/80VFM propellers.

Installation of McCauley model 3AF32C515/82NLA-4.0 propellers.

Increase maximum ramp weight to 7140 pounds, increase takeoff weight to 7105 pounds and the addition of optional McCauley model 3AF32C515/82NLA-4.0 or Hartzell model PHC-C3YF-2UF/FC7663D-2Q or PHC-C3YF-2UF/FC7663DB-2Q propellers..

Increase maximum ramp weight to7140 pounds and maximum takeoff weight to 7105 pounds, and the addition of optional McCauley model3AF32C515/82NLA04 propellers.

Increase maximum ramp weight from 6750 to 7140 pounds and maximum takeoff weight to 7105 pounds, and addition of optional McCauley model 3AF32C515/82NLA-4.0 propellers.

Increase maximum ramp weight from 6750 to 7140 pounds and maximum takeoff weight to 7105 pounds, and addition of optional McCauley model 3AF32C515/82NLA-4.0 propellers.

Install propeller governor control bracket.

Installation of Teledyne Continental Motors TSIOL-550-A 'Liquid-Cooled' engines. RAM winglets must be installed in accordance with STC SA4943SW.

Installation of Cablecraft throttle, mixture, and propeller control cables.

Installation of Teledyne Continental TSIO 520-N or NB engine, modified by STC SE3714SW, installation of McCauley 3AF32C93/82NC or McCauley 3AF32C505/82NEA propellers and increased Maximum Takeoff Weight to 6510 pounds.