Piston and Connecting Rod Assemble (LS7)

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Retaining Clip In Pin Bore Groove

Courtesy of GENERAL MOTORS COMPANY

Install the retainer. The retainer should be seated in the groove of the pin bore.

Fig 2: Connecting Rod Marks

Courtesy of GENERAL MOTORS COMPANY

Assemble the piston and connecting rod. The mark (1) on the top of the piston and the error proofing tabs (2) on the connecting rod should be facing the same direction.

Fig 3: Piston, Pin & Retainer

Courtesy of GENERAL MOTORS COMPANY

Install the piston pin (2) to the piston and connecting rod.
Install the retainer (1). The retainers should be seated in the groove of the pin bore.

Fig 4: Removing/Installing Piston Rings

Courtesy of GENERAL MOTORS COMPANY

NOTE:

When installing piston rings, use a ring expander plier type tool. Do not roll the rings into the grooves of the piston. Use caution and care to expand the rings only slightly larger than the outside diameter (OD) of the piston.

Using piston ring pliers, install the piston rings onto the piston. The dimple or mark on the upper and lower compression rings should face the top of the piston. The lower compression ring has a grooved channel along the entire bottom face of the ring and should face the bottom of the piston.
Position the oil control ring end gaps a 180 degrees from each other.
Position the compression ring end gaps 180 degrees opposite each other.

Fig 5: View Of Piston, Connecting Rod & Bearing Assembly

Courtesy of GENERAL MOTORS COMPANY

Install the connecting rod bearings to the rod and cap.