The underside piston pin boss is a favorite area for balance metal removal. This area has excess metal due to the design. You can just take it off the piston and not have any serious effects
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By: Gallery Administrator
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Title: Forged Pontiac Pistons
Description: The underside piston pin boss is a favorite area for balance metal removal. This area has excess metal due to the design. You can just take it off the piston and not have any serious effects
