Quote:
Originally Posted by hotlapZL1
I wonder if the drop to 640 HP, 630 lb-ft is the result of wet sump. Otherwise the same. It is labeled LT4
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Probably a fairly healthy combination of things, not limited to the wet sump system, a more restrictive exhaust path and maybe an intake difference. The same thing happened when the V6 was transplanted over from the old CTS when the 5th gens first came out. They used the old ratings from the CTS, but when they recertified it for the Camaro it gained power due to a different arrangement.