Un-machined kit NOTE: Machining and assembly required. For many years a mainstay of the Pennsylvania and New York oil fields, these engines can still be found in use today, although most have been converted to half breed gas engines. This ⅛ scale replica has a 12" overall length and a 6½" diameter fly­wheel. The bore is 1" & stroke 1½". The kit comes complete with 18 sand castings, all the brass bar stock, gasket material, screws, etc. required and complete working drawings. This kit is a machinist's delight no matter whether you are a professional or an amateur. The satisfaction of seeing this engine run with all its moving parts operating is reward enough, but watching the fascination of others who see it work is truly gratifying. The kit includes a set of 18 easy machining bronze and iron castings, all necessary hardware, gasket material, brass bar stock and complete set of working drawings. Click here to see a typical pipework arrangement to connect the Steam Drilling Engine to the PM Research Horizontal Boiler, Part No: BLR-2.