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Home >> Chevrolet >> 1987 >> R 20 P/U 2WD L6-292 4.8L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> Crankshaft, Engine >> Crankshaft Dimensions
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Crankshaft Dimensions

Journal/Bearing Dimensions
Crankshaft Journals Main Bearing Journal Diameter 2.2979-2.2994 Inch (in)
Connecting Rod Journal Diameter 1.999-2.000 Inch (in)
Maximum Out Of Round All 0.001 Inch (in)
Maximum Taper All 0.001 Inch (in)
Runout Service Limit -
Note: If main journals are misaligned, crankshaft is bent and should be replaced.
Bearing Clearance Main Bearings -
Note: Standard: Exc. No. 7, .0010-.0024 inch; No. 7, .0016-.0035 inch. Service: Exc. No. 7, .0010-.0025 inch; No. 7, .0015-.0035.
Thrust Bearing .002-.006 Inch (in)
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