I am putting my faith in the 'off the shelf' LS7. The one they plan to put in the Vette. Rumor has it the C7 would have a 570 HP 525 TQ LS7. Given that these numbers are pure speculation by various print and Internet 'news' sources it may be pure fiction. On the other hand, since I am connecting the dots...... GM has the ability to build a LS7 close to the same power as an LSA.... This would reduce weight up front, reduce heat, reduce heat soak.... it all depends on how you read the ZL1 information. I seem to remember reading it would never have this kind of power.....
At least that is what Flounder tells me.