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The LSA seems to be a complete forged bottom end engine except for the pistons which are still stronger than normal LS3 pistons but not the forged ones from the LS9. The LSA has a 1.9 cu in supercharger compared to the LS9's 2.3 cu in supercharger and increased cooling bricks in the intercooler, which when coupled with the forged pistons require's a slight increase in hp to operate compared to the LSA.
This is what i take away from the info provided and input from "Uncle Robin Lawrence" on the benefits of the LSA.
I remember the "Fbod Father" mention at the Indy gathering saying that GM would never loose a hp race nor a performance race with Ford's mustang.
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