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Can anyone identify the maker/engines that used this valve and keeper system?>

Thanks, I appreciate the help.

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Try Indian FOUR cylinder 36-37, or Jr Scout. Possibly ACE (motorcycle) 4 cylinder late 20's to 1934 or 35 time period. Could that possibly be Packard V12?????

Aproximately what is the face angle???

Thanks for the responses, but you guys just cost me a cup of coffee! They were packaged in an open (not sealed) Packard parts envelope and I was asked what they were from. I don't recognize them. I bet the owner that the sharp gurus on Packard Info would identify them within 2 hours! Not like any Packard valves I've dealt with, my blue prints of a Packard Twelve arent' clear enough to tell. Valve fact angle appears to be 45 degrees.

Maybe I'll try to change the bet to 36 hours.

Part number on envelope???? Packard script on valve????

No, No. If there was a part# on the envelope, I most likely wouldn't be asking.

But thanks, and keep thinking, I hate to loose a bet!

PS - Packard Twelve valve faces are, unlike most of their other engines, 45 degrees, both intake and exhaust.

No script on the valve somewhat begs the question as to when did Packard begin to script the valves. We would know then a latest date that the valve could be.

Packard script appeared on their valves at least in the teens. I'm pretty much assuming this isn't a Packard valve and was wondering if anyone could recognize it by the unusual (to me) keeper arrangement. It may very well be coincidence that it was in a Packard envelope. Pardon me for not expressing the question adequately.

Wish I could help but have never seen anything like them. Curious arrangement with the little caps. Appears they have to go on top of stem but are they a wear surface or there to hold the rest of spring retainer down in a certain position. That seems an awfully large groove for such small half circle clips. Wonder if any advantage vs the split tapers.

Late 8N Ford Tractors had little caps like those that caused the valves to rotate.