Though the Blacktop head includes a far more open combustion chamber (see “Head combustion- chambers”) it still has the next static compression ratio (see “compression ratio”), this is only due to piston design. The Silvertop piston contains a very tiny dome with two deeply angled exhaust flycuts, two reasonable internal https://raymondljige.azzablog.com/31472413/the-definitive-guide-to-toyota-4age-blacktop-engine-for-sale