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Old 08-18-2020, 09:34 AM   #2
MikeN
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Join Date: Oct 2007
Location: Marietta, GA
Posts: 814
Re: The plot thickens. 1964 C20

Small block Chevy's take oil pressure off a vertical threaded hole in the block just behind the intake manifold in the distributor area. If the hole above the oil filter is open to the oil passages, it should be plugged. It would be used for an external oil cooler if applicable.
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