Originally Posted by 2W0EPI

Force 46 engines are an independent Taiwanese company which has been making successful engines for nitro cars for some time and they have just entered the aero glow engine market and as far as I could tell, info on their engines longevity is rather new but reports that I've seen, give it ++positive rating and as a result of their price point, I bought 2 engines which contain a double bearing crank shaft, meaning they are serious about quality. However, they do not come with a supplied glow plug, that up to the end user to decide, they recommend a cold plug.

On the other hand, the OS 46 engine is Japanese, which means you are getting unquestionable quality but at 35% increase in price.I doubt very much that their parts, between the two engines are interchangeable.

Also, note, Taiwanese quality is often higher than Chinese mainland made equivalents.