Finally the GEN 5 LT1 has its power rating(s)
With the standard exhaust power is the newer SAE "Certified" power of 455hp at
6000rpm/460 lb/ft torque at 4600rpm
With its optional exhaust, SAE Certified power is up to 460 hp@ 6,000rpm/465 lb/ft torque @ 4600rpm. Without a doubt, this is the highest output of any standard engine GM has ever stuffed into a production vehicle, bigblock or smallblock. It has torque that rivals the 7.0l 427 cube GEN 4 LS7 under 4700rpm.

Someone sneek under the fence with their laptop and snag an LT1 calibration for us to play with.

peace
Hog