Welcome to AC... Home to the world's "most powerful piston aero engines."
Liquid Cooled Lycoming
Liquid Cooled Cylinder Kits for 0-320, 0-360, & 0-540 Lycoming Variants.
Legion™ Stroker Kits
LEGION™ 409ci and LEGION™ 613ci Long Stroke Kits for your Lycoming O-360 and O-540 variants. LEARN MORE
HIGGS DIESEL
Liquid Cooled, 2-Stroke Diesel, CCT (Combined Cycle Tech), Low Fuel Pressure, Dry Sump, FADEC, Integrated Gearbox Engines. 115hp-1,600hp. LEARN MORE
SUN 'N FUN 2022- booth B-47
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EAA AirVenture
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LEGION KITS
Long Stroke kits offer instant performance gains for Lycoming O-320, O-360, O-390, and O-540 range.
228hp - 320hp | LEARN MORE >>
GLADIATOR CYLINDERS
Liquid Cooled Cylinders offer performance and protecting for Lycoming O-320, O-360, O-390 variants.
200hp - 220hp | LEARN MORE >>
CENTURION CYLINDERS
Liquid Cooled Cylinders offer performance and protection for your Lycoming O-540 variants.
350hp | LEARN MORE >>
HAWK V4 E330J/G-T
Designed as a replacement for 6 and 8 cylinder Lycoming's and 6 cylinder Continental engines.
350hp - 500hp | LEARN MORE >>
CONDOR V12 E100J/G-T
A heavy fuel multi-application solution using our exclusive combined cycle technologies and 2-stroke designs.
1000hp-1600hp | LEARN MORE >>
FALCON FL200J/G
SWIFT FL150J/G
Designed as a direct replacement for Rotax engines and LSA, Kit Aircraft Markets.
115hp – 250hp | LEARN MORE >>
115hp – 250hp | LEARN MORE >>