AS CLOSE AS I CAN MEASURE IT HAS A 1 /516 BORE 2 1/2 INCH STROKE AND 7 1/2 INCH FLYWHEELS, IT STARTS EASILY AND RUNS VERY WELL AND SPEED IS ADJUSTABLE. I WILL PACK ENGINE WELL BUT I WILL NOT BE RESPONSIBLE FOR DAMAGE CAUSED IN TRANSIT. The item “HIT MISS STATIONARY ENGINE” is in sale since Friday, January 17, 2020. This item is in the category “Industrial\Farming & Agriculture\Media\Books”. The seller is “rjdp1951″ and is located in Goodna, QLD. This item can be shipped to Australia, United States, United Kingdom.