Can a builder put a LS engine in a FAA certified aircraft?
I have heard that it is possible to get a FAA field STC certification for your Bonanza or Cessna with a LS1 engine (depending on which DER/DAR you talk to). Basically you would have to perform the FAA requirements with a FAA witness or DER/DAR for validation. The LS2 would easily pass the fuel, induction, ignition, lubrication, and vibration requirements. Then you would be require to perform a 150 hr life test of which some of the test are as follows 30 hrs is 100%-50% every five minutes alternating 20 hrs at 90%-50% every 1.5 hrs alternating 20 hrs at 75%- 50% every 1.5 hrs alternating You would have to produce documentation such as operation manual, service/maintenance manual, engine log, and engine manual. The Part-91 STC field approval would be for your and only your aircraft and would not be a type certification for manufacturing.
