RE: Numbers for ST G21/35 DDD head
Hi AMB:
No it is not the ST.35. I think that the ST .35 was a plain bearing engine that came in a baffled and a flat topped piston model. Later ones had PDP added. One for stunt and one for Slow Combat. They had a C on the case.
The one that I am running is a ball bearing engine that was known as the ST G21-35. It is a .35 disp. engine. Yes, it is quite old. Like all ST engines, I find them to be great engines!
Stay well.
Franchi