I wouldn't bet on it. The safety record of auto engines converted for aircraft use (generally in homebuilt/experimentals) is not very favorable. Auto engines

I wouldn't bet on it. The safety record of auto engines converted for aircraft use (generally in homebuilt/experimentals) is not very favorable. Auto engines are designed to cruise at 10% power or less with brief excursions to higher power. An aircraft engine runs at 75% power for hours continuously, and even with modifications, auto engines historically have not delivered the reliability of the essentially 1930s designs of aircraft piston engines.