Cobalt L4-2.2L (2008)
Piston: Specifications
Piston - Piston Diameter - @14.5 mm up .................................................................................................. 85.967-85.982 mm (3.3845-3.3851 in)
Piston - Piston Pin Bore Diameter ........................................................................................................................ 20.002-20.007 mm (0.07875-0.7877 in)
Piston - Piston Ring Groove Width - Top ....................................................................................................................... 1.23-1.25 mm (0.0484-0.0492 in)
Piston - Piston Ring Groove Width - Second .................................................................................................................. 1.52-1.54 mm (0.0598-0.0606 in)
Piston - Piston Ring Groove Width - Oil Control ........................................................................................................... 2.52-2.54 mm (0.0992-0.1000 in)
Piston - Piston To Bore Clearance .............................................................................................................................. 0.010-0.041 mm (0.0004-0.0016 in)