Although the Blacktop head includes a far more open up combustion chamber (see “Head combustion- chambers”) it continue to has the next static compression ratio (see “compression ratio”), this is solely because of the piston style. The Silvertop piston features a quite smaller dome with two deeply angled exhaust flycuts, https://toyota4age27148.blogthisbiz.com/37786850/how-much-you-need-to-expect-you-ll-pay-for-a-good-4age-for-sale