1978 20' center console Shamrock for sale. 302 C.I.D. Inmar Marine Conversion engine. Fresh water cooled engine in excellent shape, equipped with Garmin GPSmap498 fish finder, marine radio, outriggers, (2) dry storage compartments, and 2015 Magic-Tilt all aluminum float on trailer. Vessel located in Tampa, Florida area. Asking price: $12,995.