cnc 355 heads

[mark3x81]

I'm purchasing a set of 355 cnc bare castings and would like to know how I could tell if they are the latest version. Are there cosmetic differences ? When did the latest production begin?

[Dart Vader]

From our techs:
"The new ones have a fully machined end pad and have been in production for about a year, the other internal changes, and plug location have been changed for about two years now. Most of the dealers we sell these too wont have old inventory, they sell too fast… We move over 1000 of these a year."