It's possible it has a hydraulic cam which could tie in with "ol 55" reply above. Can you share the stamped serial number so we can try and check what it may have come with originally? headscratch

Edit: Is it possible the engine is this one that you also asked for help ID'ing?

Last edited by Gdads51; 11/17/2024 5:02 PM. Reason: add edit note

~ Dan
1951 Chevy 3 window 3100
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