Cap John..Don't know about the nitro, it was some very old glow fuel I had..The first glow 23s were made from old broken engines with the rear cases milled off because one of the corners was missing due to a crash...I also milled the extra casting bosses off the front half...The G26 is not sold as a glow engine. The 26 was made the same way, the case was milled flush on the back...The rear crank extension that held the mag rotor was cut off...The G23 was mounted on a profile plane with 2 aluminum angle pieces using the 4 bolts that hold the case together...The old spool hub from the 23 was used on the 26, it's lighter than the new style hub and 8mm stud. A 6mm threaded rod with locknuts holds the prop on...I could probably get the 26 lighter by turning the fins down....