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Home >> Chevrolet >> 1987 >> Astro Van M V6-262 4.3L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> System Specifications

System Specifications

Bore and Deck Surface Specs
Bore Diameter Std. 3.9995-4.0025 Inch (in)
Maximum Out Of Round 0.002 Inch (in)
Maximum Taper 0.001 Inch (in)
Deck Warpage Limit 0.010 Inch (in)
Note: Maximum refinish.