The legendary powerplants from the ‘60s are above equal, right? Kind of, I guess, sorta. I mean really, you didn’t think engineers would learn anything about building engines in the last 50 years? Surely something cast in this century could offer more. Why not try a joyful LS3 crate motor straight from the General? It is lightweight, wears fuel injection and runs like a top. Sure, it’s a modern lump that looks more generator than hot rod engine, but hear me out on this one; I know the Pontiac faithful hold the 389 near and dear, but you can’t argue against 480hp. Ever. 480 horsepower in a street-driven car is plenty, I don’t care what your twin-turbo forum friends say. Think of it this way, the LS3 will make this GTO dance like the stock 326 never could, and you’ll never smell like raw fuel when you come back from a drive.