Theres not a lot of info / tests / anaylisis about, on these engines.
Stuff ive seen said the first lapped piston unfinned head versions ran hot / overheated ,
so were duely changed to twin ringed alloy piston and finned head .
Im particularly intrested in the crankshaft diameter / case shaft bore , Bolt head pattern / same as .60 B.B. ? , and cyliner outer diameter / case cylinder bore diameter .
Unless you waNNA DONATE ME AN ENGINE ! .
![Stir the pot S?P](https://stunthanger.com/smf/Smileys/classic/stirpot.gif)
![](https://i.pinimg.com/originals/c3/fa/93/c3fa9376035a66026b31a0d08bf584a0.jpg)
![](https://i.pinimg.com/originals/62/d0/e8/62d0e839ec049cb656d5cbdb05d20151.jpg)
![](https://i.pinimg.com/originals/41/f6/b9/41f6b98d32778e9aa29d4ccc24465bf7.jpg)