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Jack Shaft · 02-25-2021, 09:37 AM

Its for overflow.. when the oil pump flow overcomes the drain back tubes capacity. it also bathes the timing gear with oil..

02-25-2021, 09:37 AM	#10
Jack Shaft BANNED Join Date: Dec 2019 Posts: 1,196	Re: Hole in Block??? Its for overflow.. when the oil pump flow overcomes the drain back tubes capacity. it also bathes the timing gear with oil..