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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 427 (Engine Mechanical - 6.2L (LT4) - Description And Operation) >> Description and Operation >> Engine Component Description >> Piston and Connecting Rod Assembly

Piston and Connecting Rod Assembly

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The pistons are forged aluminum. The pistons use 2 compression rings and 1 oil control ring assembly. The piston is a lightweight design with a recessed top and barrel shaped skirt. The piston pins are a full floating design and are treated with a thin, very hard, DLC (Diamond Like Coating) coating that reduces friction and protects the piston pin from wear. The connecting rods are manufactured from a high strength powdered metal alloy. The connecting rods are fractured at the connecting rod journal and then machined for the proper clearance. All applications use a piston with a graphite coated skirt. The piston and pin are to be serviced as an assembly.

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