You’ll often hear pilots referring to the Continental® O-470 in reverent tones as “old reliable”. Powering the majority of Cessna® 180 and 182 aircraft from 1953 through 1986, this workhorse of an engine embodies simplicity, efficiency, and ruggedness. Its track record speaks louder than words: the 470 is a brawny power plant. In fact, some versions make full power at a smooth, quiet 2400 RPM. Ranging in output from 230 to 260 horsepower, the 470 engines come equipped with either a reliable carburetor or our extremely efficient continuous flow fuel injection system. Confidence among pilots can be difficult to achieve, but if there was an award for one of the most trusted aircraft engines in the sky, the 470 series would win hands down. Just ask any pilot or owner of one.
THE 470 SERIES IS A FAMILY OF AIR COOLED, NATURALLY ASPIRATED, HORIZONTALLY OPPOSED, 6-CYLINDER, GASOLINE, FUEL INJECTED, SPARK IGNITION, FOUR-STROKE, DIRECT DRIVE, RIGHT (CW) ROTATING, AIRCRAFT ENGINE WITH MANUAL ENGINE CONTROLS FOR FIXED WING AIRCRAFT.
80/87, 91/96, 100/100LL AvGas
7722 cm³471 in³
172 to 194 kW230 to 260 HP
Maximum Rated RPM
2400 to 2625 r/min2400 to 2625 rpm
127.0 mm5.00 in
101.6 mm4.00 in
7.0:1 to 8.6:1
501.7 to 721.9 mm19.75 to 28.42 in
846.2 to 852.9 mm33.32 to 33.58 in
915.2 to 1197.9 mm36.03 to 47.16 in
191.5 to 211.1 kg422.2 to 465.5 lbs
Time Between Overhaul
1700 to 2200 * hrs
* Most engine models manufactured after February 2012 have a TBO increase of 200 hours. Engines used in frequent type service have an additional 200 hour increase. See Service Information Letter SIL98-9B for details.
1. Engine rated power at sea level standard day inlet conditions (29.92 in Hg, 59°F, 0 water vapor) with maximum allowable cylinder head and oil temperatures with full
rich (maximum) fuel flow.
2. Typical engine weight including all accessories.
3. See Maintenance Manual M-0 for details and applicability.