First off, the 6.0's range in power from 300 (LQ4) to 345 (LQ9) and 367 I believe for the new 6.0 which I dunno the rpo for. There is no 395hp version. Do you want 500 fly wheel horsepower or rear wheel? Im assuming rear wheel since you were talking rear wheel with the 5.3 If you do the same mods to the 6.0L that you did to the 5.3 with the "100 hp package" I am pretty sure you might be at 375-400 or so wheel hp (just a guess here). If you want a 500 horse daily driver I say you invest in a turbo or a supercharger. With a base supercharger kit or turbo kit on a 6.0 you still wont be at 500 rear wheel horsepower. Takes alot of work and $$$ to get 500 horses to the wheels in these trucks, thats my![]()




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