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HOMESERVICE MANUALSCHEVROLET1988V 10 P/U 4WD V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
1988 Chevrolet V 10 P/U 4WD V8-350 5.7L

Crankshaft, Engine

1988 Chevrolet V 10 P/U 4WD V8-350 5.7LSECTION Crankshaft, Engine


Main Journal

Diameter
#1 2.4484"-2.4493"
#2, 3, and 4 2.4481"-2.4490"
#5 2.4479"-2.4488"

Taper
Production 0.0002" (Maximum)
Service Limit 0.001" (Maximum)

Out of Round
Production 0.0002" (Maximum)
Service Limit 0.001" (Maximum)

Main Bearing Clearance
Production
#1 0.0008"-0.0020"
#2, 3, and 4 0.0011"-0.0023"
#5 0.0017"-0.0032"
Service Limit
#1 0.0010"-0.0015"
#2, 3, and 4 0.0010"-0.0025"
#5 0.0025"-0.0035"

Crankshaft End Play 0.002"-0.006"

Thrust Bearing Clearance 0.002"-0.006"


Connecting Rod Journal

Diameter 2.0988"-2.0998"

Taper
Production 0.0005" (Maximum)
Service Limit 0.001" (Maximum)

Out of Round
Production 0.0005" (Maximum)
Service Limit 0.001" (Maximum)

Connecting Rod Bearing Clearance
Production 0.0013"-0.0035"
Service Limit 0.003" (Maximum)

Connecting Rod Side Clearance 0.006"-0.014"
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.