Originally Posted by jeremyc74
That's the 560Hp LSA in the CTS-V, it's not the full blown LS9. They're very similar, but the LSA has a smaller blower, and a standard oiling system instead of the dry sump on the ZR1.
Any idea why they didn't go with the full blown LS9 setup? Seems to me if they wanted the true track sedan, the oil sump changes would of been quite beneficial.