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rotorwrench · 05-10-2020, 09:13 AM

The casting iron formulas are likely an improvement to some degree but it depends on what the part is used for.

05-10-2020, 09:13 AM	#7
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 17,410	Re: B heads starting to... The casting iron formulas are likely an improvement to some degree but it depends on what the part is used for.