Regardless that the Blacktop head features a a lot more open up combustion chamber (see “Head combustion- chambers”) it continue to has a better static compression ratio (see “compression ratio”), this is solely due to piston design. The Silvertop piston incorporates a pretty little dome with two deeply angled exhaust https://one-bookmark.com/story18443336/5-easy-facts-about-toyota-4a-ge-described