Question: Designed by Chevrolet, this engine shared bore diameter and some parts with General Motors X engine.
Sentence (from "General Motors 60° V6 engine"): All of these engines are 12-valve cam-in-block or overhead valve (OHV) engines, except for the LQ1; which uses 24-valves driven by dual overhead cams (DOHC) instead.
Relevant evidence: No