Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2004MONTE CARLO V6-3.8L VIN KREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON, ENGINE
2004 Chevrolet Monte Carlo V6-3.8L VIN K
Piston, Engine
2004 Chevrolet Monte Carlo V6-3.8L VIN KSECTION Piston, Engine
Piston Diameter
Production - S/C 96.489-96.528 mm (3.7988-3.8003 inch)
Production - Non S/C 96.482-96.497 mm (3.7985-3.7991 inch)
Piston Diameter
Service Limit- Minimum - S/C 96.434 mm (3.7966 inch)
Service Limit - Minimum - Non S/C 96.442 mm (3.7969 inch)
Piston to Bore Clearance
New - VIN K 0.010-0.051 mm (0.0004-0.0020 inch)
Used - VIN K 0.050-0.091 mm (0.0020-0.0036 inch)
Piston to Bore Clearance
New - VIN 1 -0.0207-0.0437 mm (-0.0008-0.0018 inch)
Used VIN 1 0.0193-0.0997 mm (0.0008-0.0039 inch)
Production - S/C 96.489-96.528 mm (3.7988-3.8003 inch)
Production - Non S/C 96.482-96.497 mm (3.7985-3.7991 inch)
Piston Diameter
Service Limit- Minimum - S/C 96.434 mm (3.7966 inch)
Service Limit - Minimum - Non S/C 96.442 mm (3.7969 inch)
Piston to Bore Clearance
New - VIN K 0.010-0.051 mm (0.0004-0.0020 inch)
Used - VIN K 0.050-0.091 mm (0.0020-0.0036 inch)
Piston to Bore Clearance
New - VIN 1 -0.0207-0.0437 mm (-0.0008-0.0018 inch)
Used VIN 1 0.0193-0.0997 mm (0.0008-0.0039 inch)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.