Engine Mechanical Specifications (LQ9 VIN N)

2007 Chevrolet Silverado Classic 1500 2WD V8-6.0LSECTION Engine Mechanical Specifications (LQ9 VIN N)
Piston Ring End Gap - First Compression Ring - Measured inch) Cylinder Bore - Production 0.31-0.52 mm (0.012-0.02 inch)
Piston Ring End Gap - First Compression Ring - Measured inch) Cylinder Bore - Service 0.31-0.59 mm (0.0122-0.023 inch)
Piston Ring End Gap - Second Compression Ring - Measured inch) Cylinder Bore - Production 0.51-0.77 mm (0.02-0.03 inch)
Piston Ring End Gap - Second Compression Ring - Measured inch) Cylinder Bore - Service 0.51-0.84 mm (0.02-0.033 inch)
Piston Ring End Gap - Oil Control Ring - Measured inch) Cylinder Bore - Production 0.31-0.87 mm (0.0122-0.034 inch)
Piston Ring End Gap - Oil Control Ring - Measured inch) Cylinder Bore - Service 0.31-0.94 mm (0.0122-0.037 inch)
Piston Ring to Groove Clearance - First Compression Ring - Production 0.035-0.08 mm (0.0014-0.0031 inch)
Piston Ring to Groove Clearance - First Compression Ring - Service 0.035-0.08 mm (0.0014-0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring - Production 0.034-0.079 mm (0.0013-0.003 inch)
Piston Ring to Groove Clearance - Second Compression Ring - Service 0.034-0.079 mm (0.0013-0.003 inch)
Piston Ring to Groove Clearance - Oil Control Ring - Production 0.012-0.2 mm (0.00047-0.00078 inch)
Piston Ring to Groove Clearance - Oil Control Ring - Service 0.012-0.2 mm (0.00047-0.00078 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.