No connection. I see these because I once bought a (cheaper) engine from them. Pretty cool, if you ask me. The 4 cylinder looks to have 8 ports, in the block. The V8 looks to have the ports in the heads. I don't know if the V8 is actually out yet. The 4 cylinder sounds neat. https://www.stirlingkit.com/collect...000rpm-rc-water-cooled-gasoline-engine-17-5cc https://www.stirlingkit.com/collect...-engine-model-kits-water-cooled-4-stroke-44cc You kind of have to hand it to them for even building these. Somebody has to build a FED around one for cacklefests. Mike
I can just imagine the crowd around if you took one and set it up at a car show or swap meet. How cool.
I have a "Model Craft" book from the '50's that has several model engines in it. You would buy raw castings, then machine and****emble the pieces. One was a 4 cyl. flathead. I saw an overhead valve version of this engine in another book, but don't have in in my stash.
I set up with***** Santana at the Hot August Nights swap meet and get a lot of interest and gas money for starting the smallblock and showing some of my other creations.