New 383 Build - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Ticker* · 07-02-2010, 02:02 PM

A stock-type oil pump is fine for a 383. What's happened in the last few years is that to reduce costs, the "over the counter" type pump castings have become thinner and thinner and cracks started being reported during high-performance use. It's smart now to invest in one of the Melling Select pumps which is a standard cast-iron pump, but just a heavier casting. They're still pretty cheap - around $85 for the pump and steel intermediate rod.

The NAPA MV-55 stock pumps now come with a little sheet of paper that states "NOT FOR HIGH-PERFORMANCE USE".

As for the high-volume, high-pressure stuff I'll stay off my soapbox and just note they are not only not needed, they actively suck horsepower and cause problems long-term.

07-02-2010, 02:02 PM	#8
Ticker Account Suspended Join Date: Oct 2009 Location: Sammamish, WA Posts: 2,404	Re: New 383 Build A stock-type oil pump is fine for a 383. What's happened in the last few years is that to reduce costs, the "over the counter" type pump castings have become thinner and thinner and cracks started being reported during high-performance use. It's smart now to invest in one of the Melling Select pumps which is a standard cast-iron pump, but just a heavier casting. They're still pretty cheap - around $85 for the pump and steel intermediate rod. The NAPA MV-55 stock pumps now come with a little sheet of paper that states "NOT FOR HIGH-PERFORMANCE USE". As for the high-volume, high-pressure stuff I'll stay off my soapbox and just note they are not only not needed, they actively suck horsepower and cause problems long-term. Last edited by Ticker; 07-02-2010 at 04:10 PM.



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