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Home >> Chevrolet >> 2001 >> Astro Van 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> Piston Ring, Engine
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Piston Ring, Engine

Piston Rings (End Gap Measured in Cylinder Bore) Piston Compression Ring Gap (Production-Top Groove) 0.010 - 0.016 Inch (in)
Piston Compression Ring Gap (Production-2nd Groove) 0.018 - 0.026 (Maximum) Inch (in)
Piston Compression Ring Gap (Service-Top Groove) 0.19 (Maximum) Inch (in)
Piston Compression Ring Gap (Service-2nd Groove) 0.31 (Maximum) Inch (in)
Piston Compression Ring Groove Clearance (Production-Top Groove) 0.0012 - 0.0027 Inch (in)
Piston Compression Ring Groove Clearance (Production-2nd Groove) 0.0015 - 0.0031 Inch (in)
Piston Compression Ring Groove Clearance (Service) 0.0033 (Maximum) Inch (in)
Piston Oil Ring Gap (Production) 0.010 - 0.029 Inch (in)
Piston Oil Ring Gap (Service) 0.035 (Maximum) Inch (in)
Piston Oil Ring Groove Clearance (Production) 0.0018 - 0.0037 Inch (in)
Piston Oil Ring Groove Clearance (Service) 0.0039 (Maximum) Inch (in)