hey guys i just want to make my engine look good like in all the pics i see, and basically mine lookes like shit. its dirty and the block has those white spots on it (corrosion?), rusty screws, ect. where can i get replacement bolts or w/e? mainly visible ones, like the caps that hold down the spark plug cover. i know you can get the engine steam cleaned, but how well does that actually work? does it make it look new again? what are some other techniques? cause basically i dont know what you can get wet and what you cant under the hood. thanks.