I believe the proper ebay search term is "oil connector". There are at least two types, one where the metal line from the pushrod area bolts directly to the connector, and the other where it fits into a hole in the head.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!