LS9 ~638hp/604lb-ft
LSA ~556hp/551lb=ft
The LSA is
Not a
Detuned LS9.
They share a basic LS3 Block but ther are significant differences.
LS9 gets forged internals that the LSA lacks. It has a physically larger S/C and a larger Heat exchanger than the LSA
LSA ---> LS9



I would be shocked if the Camaro gets an LS9. I think we can hold out some reasonable hope to get an LSA in one version or another.