COX .049 ENGINE VINTAGE USED MODEL AIRPLANE/CAR ENGINE w/Heat Sink Head. Condition is Used. I bought a lot of engines from a gentleman who had them bagged/tagged, so if I make any mistakes in my descriptions, please, any expert comments are welcome! If you tell me more about what it is/isn't, I will add the post to this listing.Engine turns and has compression, seems clean inside/no gummy feel, like new. Shipped with USPS First Class Package. I will combine shipping, bas...ed on wt. of package.