I'd greatly appreciate any information that will help me understand the process for getting an STC to upgrade my O-320 from 150 to 160 horsepower with available high compression pistons. I will be doing this as part of a full engine overhaul on my 1972 Citabria GCBC. Who sells the STC? How much? Than you very much.
Citabria STC - where and how much?
- Thread starter Lucky
- Start date
I'd be curious to know if the STC changes the basic designator/model of the engine
Bob Turner
Well-known member
- Joined
- Apr 4, 2018
- Messages
- 3,998
Do a search on supercub dot org. Done all the time. Spectacular engine.