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tubman · 03-22-2020, 06:08 PM

This is really odd; engines generally constructed well, but with one glaring error; This is not the first time I have heard of this; it seems fairly common. I had it happen to me once. I spent "Big Bucks" on a "quality" rebuild on an O/T 327/350 for a Corvette. It came with a HV/HP oil pump that kept the gauge pegged, even a hot idle. After a few miles and a lot of oil consumption, I pulled the pan and put in a stock spec pump which brought everything back to normal.

The only thing I can think of is that a Melling HV/HP pump is 1/3 the cost of a stock replacement (If you don't believe me, look it up). The rebuilder screwed up the job to make an extra $40 (and possibly brag "I upgraded your oil pump to a racing unit").

03-22-2020, 06:08 PM	#14
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,316	Re: Low oil pressure solved This is really odd; engines generally constructed well, but with one glaring error; This is not the first time I have heard of this; it seems fairly common. I had it happen to me once. I spent "Big Bucks" on a "quality" rebuild on an O/T 327/350 for a Corvette. It came with a HV/HP oil pump that kept the gauge pegged, even a hot idle. After a few miles and a lot of oil consumption, I pulled the pan and put in a stock spec pump which brought everything back to normal. The only thing I can think of is that a Melling HV/HP pump is 1/3 the cost of a stock replacement (If you don't believe me, look it up). The rebuilder screwed up the job to make an extra $40 (and possibly brag "I upgraded your oil pump to a racing unit").