Mahle 930029895 4.095bore,3.898stroke,6.417rod,1.956ch,1.358pin,-41.8cc,874g,16.6cr, M142
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GM 6.6L Duramax Cast Performance Pistons w/ 0.075" Deep Valve Pockets 411cid 4.095 x 1.951CH, 3.898stroke,6.417rod,1.358pin,-41.8cc,893g,16.6CR, M142.