RE: Cox Engine glow head adapters on Ebay
Its been said by others more knowedgable than me, but a standard plug just won't give you good performance in a 1/2a size engine. There is too much compression loss around the element and open plug threads, not to mention the less than optimum combustion chamber shape
I still have a pretty good stock of Cox plugs, but if/when they are gone I will use a Galbraith (sp?) or KK head that takes the Nelson plug.
Arlen