Grand AM L4-138 2.3L VIN A MFI (1992)
Piston: Specifications
Clearance in Bore ............................................................................................................................................... 0.019 mm - 0.051 mm (0.0007" - 0.0020")
Compression Height ............................................................................................................................................... 32.0 mm +/- 0.1 mm (1.260" +/- 0.004")
Piston Diameter at 70° F (21° C) .................................................................................................................... 91.957 mm - 91.973 mm (3.6203" - 3.6210")
Piston Pin Bore I.D. at 70° F (21° C) ............................................................................................................. 22.008 mm - 22.012 mm (0.8664" - 0.8666")
Weight Less Pin & Rings (LD2 or L40) .................................................................................................................. 403g +/- 6g (14.039 oz. +/- 0.1764 oz.)
Weight Less Pin & Rings (LGO) ............................................................................................................................ 420g +/- 6g (14.8151 oz +/- 0.0021 oz.)
Ring Groove Width-Top Compression ....................................................................................................................... 1.55 mm - 1.57 mm (0.061" - 0.062")
Ring Groove Width-Second Compression .............................................................................................................. 1.52 mm - 1.54 mm (0.0598" - 0.0606")
Ring Groove Width-Oil .......................................................................................................................................... 3.01 mm - 3.03 mm (0.1185" - 0.1193")
