Quote:
Originally Posted by Jim Hanig
Mike what do you think caused the shaft to break? I have raced chevys for 50 + years and never had a melling, chevy pump fail. Jim Blair does low pressure pumps Pierre s.d.
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I have found over the years that you are much better off using a product that is specifically designed for a racing application instead of using a modified passenger car type product. I found this out the hard way. I use a Moroso billet oil pump a system one oil filter and racing quality engine oil just to name a few. Just Google Meling oil pump failures and you can get some info. The pump that broke was a Melling M55. Snapped off at the neck just below the bolt flange. It destroyed that short block.