THUNDERBOLT 540 YIO-D4A5 • $85,000 • AVAILABLE • YIO-540-D4A5 Thunderbolt We have a thunderbolt ready for delivery from Lycoming brand new and available now. This is a thunderbolt build with Dual E-mags, and airflow performance injection system. Great engine for a Bearhawk Four, Rv10 and many others. New in crate ready for delivery. Current build cost 95k+ and wait time. • Contact Virgil Irwin - BEARHAWK AIRCRAFT. , - located Fairview, OK 73737 United States • Telephone: ---------- • Posted June 16, 2025 • Show all Ads posted by this Advertiser • Recommend This Ad to a Friend • Email Advertiser • Save to Watchlist • Report This Ad