Up for sale is an IO520BB(11B). It was removed from a flying T-34 that is in for a 550 upgrade. The engine is a Continental factory reman from 2009 with 1369.5 hours at the time of removal. We removed it from the airplane this September, added a few quarts of Lucas oil stabilizer to fresh oil and ran it to help keep oil stuck to the internals, flushed the entire fuel system with Marvel Mystery oil to keep the seals and diaphragms from drying out, sprayed fogging oil in the cylinders, put desiccant plugs in the upper spark plug holes, took the dipstick out and put a large bag of desiccant over the hole, and plugged all the openings into the engine and capped all fittings. It has been stored in my dry hangar since. I just borescoped it today and the cylinder walls still look new, with no rust and plenty of cross hatch. The airplane was regularly flown on average about 70-100hrs/year and still ran good when removed, an opportunity to swap in a 550 arose that was too good to pass up so that's why we pulled it. This is a 24 volt engine (starter and alternator) that will work in a Bonanza. It does not have an air conditioning drive shaft, and has a 4 stud electric tachometer drive pad. This can be swapped for the traditional mechanical cable drive tachometer adapter just by swapping the oil pump. Or if you are running a digital tachometer only, simply install a block off plate. Logbook included back to day 1. I included a picture of one exhaust valve and one cylinder wall, all 6 cylinders look the same.

-All 6 cylinders replaced in 2016 733hrs ago w/ Superior Millennium cylinders
-Magnetos - O/H'd 331hrs ago
-Hartzell 24v 50amp alternator overhauled in 2016 726hrs ago (500hr visual inspection just done last year, it does have elastomeric drive coupling)
-Has GAMIjectors

I can crate it up and even arrange shipping at additional cost in a Continental wood shipping crate.

$35,000

724-379-8628

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This engine really wants to get back in the air! Make an offer!