Though the Blacktop head encompasses a much more open combustion chamber (see “Head combustion- chambers”) it even now has an increased static compression ratio (see “compression ratio”), this is only because of the piston structure. The Silvertop piston contains a very small dome with two deeply angled exhaust flycuts, two https://toyota-4a-ge38260.ka-blogs.com/84710539/4age-blacktop-engine-for-sale-can-be-fun-for-anyone