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Lycoming Home > Engines

Lycoming 235 cubic inch series

The little engine that could, does and will continue to do.

The Lycoming O-235 series engines are four-cylinder, direct-drive, horizontally opposed, wet-sump, air-cooled models. The cylinders are of conventional air-cooled construction with heads made from an aluminum-alloy casting and a fully machined combustion chamber. The cylinder barrels are machined from chrome nickel molybdenum steel forgings with deep integral cooling fins, ground and honed to a final specified finish.

FORGED-STEEL CONNECTING RODS

OPTIONAL CHROME KIT

NITRIDE-HARDENED STEEL ALLOY CYLINDER BARRELS*

FORGED-STEEL CRANKSHAFTS

FORGED-STEEL CAMSHAFTS

CHROMIUM-MODIFIED NI-RESIST IRON EXHAUST-VALVE GUIDES, RESULTING IN BETTER WEAR CHARACTERISTICS

AVAILABLE OPTIONS:

• Lightweight starters
• Electronic ignition
• Spin-on or remote oil filter
• Air conditioning provisions
• Factory chrome kits:
• Triple-plated rocker-box covers, intake pipes and shroud tubes
• Optional magnetos
• Fixed-pitch or constant-speed propeller applications

*Except for O-235 low-compression engines.