This engine was manufactured by Continental. It is a TSIO-520-N rated for 2,700 RPM and 310 max HP when new. SN: 504250 was previously installed in the left position of a 1971 Cessna 340 with U.S. registration N5418M, (SN: 340-0029) and includes the turbo charger, throttle body, intercooler and waste gate.
The seller states that the aircraft was involved in a hard landing in June of 2019. Post incident the engine was inspected using dye penetrant and a dial indicator to determine the presence of any damage. This process was applied using Continentals recommendations and showed the engine to be in good operating condition with no known damage to the internals.
At the time of the incident the engine had approximately 296 Hrs. SOH. The last documented inspection was March, 2019. At that time compression ratings were shown and documented to be: #1 64, #2 60, #3 64, #4 66, #5 62, #6 70. The compression ratio is 7.5:1.0 with a 5.25″ bore and a 4″ stroke. Displacement is 520 cubic inches. Dry weight is 430 pounds.