1927Chevy Posted April 26, 2015 Share Posted April 26, 2015 Ladies and Gentsapplication 1923 Studebaker big six. looking at some sad sack cap bolt type push rods that the valve stems has pounded a hole in. see pics below. is there someplace that sells this type or has someone seen a similar push rod from another application. The threaded size is 3/8 24tpi but the head is undersized with a 1/2 inch hex rather than 9/16. I am thinking I could take a 3/8 24tpi modern bolt and make it 1/2 hex but am wondering about the hardness. how hard should it be?Ken Link to comment Share on other sites More sharing options...
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