I have this Echo CS 452VL 45cc chainsaw engine for sale locally.It has no bar or chain and the oiler needs parts,that are available,but I'm no chainsaw fan.It has a rebuilt carb,new spark plug, new fuel line and filter and has spark and good compression.The crankcase is part of the saw body so it would require some trimming to convert for airplane use ,but would be great as a puller tractor engine.If interested PM me.