200MK STINSON 200HP MINIMUM KIT

Lycoming IO-360 Series - 200hp, Stinson 108-3 Only

Univair holds STC approval SA1552NM for the installation of the IO-360* 200hp engine conversion with Hartzell constant speed propeller on the 108-3 Stinson. This conversion is simple and a direct replacement of the Franklin 165 hp engine and related accessories with a more modern, fuel efficient and more powerful Lycoming IO-360 series engine package.

This conversion retains the existing lower cowling; however, it must be modified. A new deeper nose cowl and longer side cowling are required. A new fuel boost pump is required. Because of the installation of the constant speed propeller and related accessories, the battery box must be relocated behind the baggage compartment.

There are standard and wide deck versions of the Lycoming IO-360. To insure that we provide the proper parts for your installation, we need to know which version you have. Information how to determine this is on page 159 of our printed catalog.

Below is a list of major items required for this installation as contained in the Minimum Conversion Kit. This kit will only be sold only as a complete package. Other "detail" items needed for the conversion such as controls, ducting, hoses, etc., can be purchased individually.

Note: In developing this STC installation, Univair used the narrow (standard) deck engine. Installations using the later wide deck engines may require minor modifications to the baffling.

*IO-360 engines approved for this STC are IO-360-A1A, -A1B, -A1B6, and -A1C

ENGINE NOT INCLUDED WITH KIT

This kit includes the following:

To the extent that the trademarks or registered trademarks of an original equipment manufacturer other than Univair are mentioned on this website, the name of that manufacturer is only for descriptive use and does not imply any affiliation with, manufacture by or endorsement by the respective owners of such trademark. Many products of Univair are replacement products for products of original equipment manufacturer of the aircraft. Univair to the extent required by Federal law obtains approval from the FAA for the manufacture of replacement parts for aircraft. The reference to the name of the original manufacturer is for identification purposes only and not to represent the original manufacturer is associated in any way with the Univair product.