This is not really anything I need to know for my own project but it would be interesting to know for sure which answer is correct.

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--> Check out my FI Turbo build <--
--> And the race truck build project <--
--> The Diesel Corvette <--

In order to make the cheapest lifters possible comp makes shells for lifters in varying diameters for different makes....then makes the interiors all the same....with 2 sizes of pucks...1 for solids and 1 for hydraulics.

Dennis' answer is the same as mine

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Yeah....Im the one who destroyed this rare, vintage automobile.....

The original question was:

Prior to the disassembly of the lifter, all anyone knew was that it looks for all the world like a hydraulic lifter for a slant six. Clearly a snap ring holding a plug in place and clearly the hole in the top of the lifter usually seen in slant six hydraulic lifters and not mechanical solid lifters.

Then you disassembled it and discovered that it was actually a solid lifter that was machined to be almost a hydraulic lifter.

I and others received some good information today. Thank you everyone for contributing.

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Casually looking for a Clifford hyperpak intake for cheap.

I appreciate your response about learning the true story. We learned something we did not previously know.

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--> Check out my FI Turbo build <--
--> And the race truck build project <--
--> The Diesel Corvette <--

We know more about these lifters than when the thread began. When we see these lifters again, we will all have a better understanding of them.

Thanks to all who post the questions, suggestions, and answers on this board. Have a safe and healthy Holiday season!

Neil