Quote:
Originally Posted by CamaroChriSS
In the 5th gen, the automatic had less power because it had the L99 vs the LS3 in the manual - I believe the only difference was the cam shaft timing in each was optimized to operate better with the different transmissions. No such difference in the 6th gen, LT1 regardless of transmission.
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The L99 had VVT and a different compression ratio I think, plus all the associated AFM hardware.