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57tailgater · 07-31-2019, 11:28 AM

If you're talking about a SBC, the one by the distributor would be your oil pressure. The one by the filter looks like it may be for a low oil pressure warning light with the two connections. Not sure what the other one is - may be an oil temp but not sure what gets monitored at that port? Can't see the connection well enough.

07-31-2019, 11:28 AM	#409
57tailgater Registered User Join Date: Nov 2011 Location: Middle Georgia Posts: 289	Re: '50 chevy 3100 If you're talking about a SBC, the one by the distributor would be your oil pressure. The one by the filter looks like it may be for a low oil pressure warning light with the two connections. Not sure what the other one is - may be an oil temp but not sure what gets monitored at that port? Can't see the connection well enough.