3 thoughts on “Melling M55HV Oil Pump”

  1. Great price and quality! This pump went in a high rpm, performance Chevy 355 with a 7 quart oil pan. Works great for the application. Oil pressure is excellent. If you are using a standard volume/pressure oil pump, and your engine doesn’t rev over 7,000 rpm’s, I suggest sticking with a new Melling standard volume pump #M55. Even if you put a new cam in or heads or whatever. I’ve seen these High Volume pumps eat a distributor and/or cam gear within a week on lower revving high horsepower engines. They put a lot of extra…

  2. Order a New Intermediate Shaft with Attached Steel Sleeve too Does not come with a New Intermediate Shaft with Attached Steel Sleeve that is required for use. If the New Intermediate Shaft with Attached Steel Sleeve is not used it voids the warranty and doesn’t come with this pump.

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