Chevrolet Workshop Service and Repair Manuals

Piston Ring: Specifications

Piston Ring End Gap

First Compression Ring .................................................................................................................................................  0.25-0.46 mm (0.010-0.018 inch)
Second Compression Ring ............................................................................................................................................  0.58-0 84 mm (0.023-0.033 inch)

Oil Control Ring ............................................................................................................................................................  0.254-0.762 mm (0.010-0 030 inch)
Piston Ring to Groove Clearance  

First Compression Ring .........................................................................................................................................  0.033-0.079 mm (0.0013-0 0031 inch)
Second Compression Ring ..................................................................................................................................  40 033-0.079 mm (0.0013-0 0031 inch)

Piston Ring Thickness

First Compression Ring .........................................................................................................................................  1.176-1.197 mm (0.0463-0.0471 inch)
Second Compression Ring ..................................................................................................................................  1.1476-1.497 mm (0.0581-0 0589 inch)