The LS7 is a great motor and I wish they could have found some ways to make it more available. I always thought the CTS could use some middle ground with an LS3 or a LS7 in it. The jump from V6 to LSA seems a little extreme. The GTO could have used one it it's final year of production. This late in the game it seems like they might just have some extra motors laying around and no Z06s to toss them in.
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