Cylinder Bore Specifications

1999 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Cylinder Bore Specifications
Cylinder Bore Diameter 4.0007-4.0017 in
Out-of-Round Production 0.0010 in
Service 0.002 in
Taper Production
Relief Side
0.0010 in
Production
Thrust Side
0.0005 in
Service 0.0010 in
Piston Bore Clearance (Production) 0.0007 - 0.002
Piston Bore Clearance (Service) 0.0007 - 0.0026
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.