I just noticed a threaded plug on the passenger side of my 1956 235 engine. This plug is about three and a half inches in front of where the coil mounts.Is this some sort of oil port ? Keep in mind this 1956 848 head is on my 1954 261 engine.Should i be concerned about it ?

Thanks,Tim


1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
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