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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.7L V8 - VIN [K] >> Engine Specifications >> Piston/Pin/Ring Specifications

Piston/Pin/Ring Specifications

PISTONS, PINS & RINGS SPECIFICATIONS

Application In. (mm)
Piston Clearance (1) .0007-.0017 (.017-.043)
Pins
Diameter .9270-.9273 (23.545-23.553)
Piston Fit .0002-.0007 (.005-.017)
Rod Fit .0008-.0016 (.020-.041)
Rings
No. 1
End Gap .010-.020 (.25-.51)
Side Clearance .001-.003 (.03-.07)
No. 2
End Gap .010-.025 (.25-.64)
Side Clearance .001-.003 (.03-.07)
No. 3 (Oil)
End Gap .015-.055 (.38-1.40)
Side Clearance .002-.007 (.05-.17)
(1) Maximum service limit is .0027" (.069 mm).