Atomic 4 Model: 5101 SN: 204003 Hours: 1219 Raw water cooled. Engine rebuild 2009 – New valves, re-bored cylinders, thermostat, hoses, gaskets. Pulled from 1976 Catalina 30 in Nov 2014. I purchased the motor in Nov 2014 for use as replacement engine for my project sailboat. Ran with fresh water and stored in my garage since then. Sprayed and cranked every few months with anti-fogging oil. Last run in my garage July 2022. Starts and runs well. Have video. Other parts include – Heat Exchanger and parts (for freshwater cooling), plugs, rotor and cap, fuel filter, coil, belts, shifter, and cables (choke, throttle), and manuals. Project sailboat needed too much work, so it found a new home. This engine is in good shape and needs a new home too.