I figured out my situation recently. The CTS-V used a different tail shaft housing compared to the ZL1. Both are MG-9 but different tail shaft housing. I was concerned on what I had that is wasnt the MG-9 but it had the same serial numbers as the engine. That is the difference and the need for 2 mounts.

Ahh I forgot about that option as well. Mine is from Holden. What mount did you go with ?


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I have hooker motor mounts and got the blackheart crossmember and the poly mount. I am getting ready to see how it fits but may need to modify the crossmember. I never found much info on how this will fit. I may try and see if I can reuse the bracket that bolts to the transmission or make something