Piston and Connecting Rod
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
The Pistons are aluminum pistons with top land and floating pin. The connecting rods are fractured steel connecting rods with bushing.