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New block
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05-25-2017, 09:55 AM
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rotorwrench
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,509
Re: New block
I'm thinking they holes are for hot water heater return. Most of the 8BA series had the return on the right side pump. Left side had the boss but was left unmachined.
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