What are the differences between the ZR1 engine and the 2009 CTS-V Engine?

The fundamental differences are the ZR1 supercharger size is significantly larger (2.3 L vs. 1.9 L) and the engine uses forged pistons and titanium connecting rods in addition to other valve train component differences because of the higher power levels. The ZR1 also uses a dry-sump oiling system.

Submitted by: Reed
Answered by: John H
Last modified: 02.24.08