Ready To Go,Cessna 400HP IO720 AG Truck A188B 1975 Engines: SMOH: 229 We have only used for low volume Forestry Spraying 35+mph 229 SMOHE And OH Prop & Balance Only 71Hrs Since Complete Top Over Haul With New Pistons & Rings & Pins 30K+ Spent on Top Overhaul......more.