Mahle MS GM Duramax 6.6L Piston Set 407cid 4.075 x 1.951CH -40.7cc M142 16.8CR TBC

407cid 4.075 x 1.951CH, 3.898stroke,6.417rod,1.358pin,-40.7cc,880g,16.8CR, M142, TBC coated