gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Piston, Engine|Service and Repair > < Crankshaft Balancer - Removal/Installation Tool
Page 1
background image

Piston: Specifications

Engine Liter/CID .............................................................................................................................................................................................  5.7L/V8-350

All specifications given in inches.

Piston Diameter (Std.) [01] ...........................................................................................................................................................................  3.9988-4.0008
Piston Clearance [07] ....................................................................................................................................................................................  0.0007-0.0017
Piston Pin Diameter (Std.) ............................................................................................................................................................................  0.9269-0.9271
Pin To Piston Bore Clearance [05] ..........................................................................................................................................................................  0.0010
Piston Rings

End Gap [02]

Comp. ....................................................................................................................................................................................................................  [21]
Oil .........................................................................................................................................................................................................................  0.01

Side Clearance

Comp. ...................................................................................................................................................................................................  0.0012-0.0032
Oil .........................................................................................................................................................................................................  0.0020-0.0070

[01] Measured at 90 deg. angle to piston pin.
[02] Minimum.
[05] Maximum.
[07] Service limit, 0.0027 inch.
[21] Top ring, 0.010 inch; second ring, 0.018 inch.

Piston, Engine|Service and Repair > < Crankshaft Balancer - Removal/Installation Tool