Even though the Blacktop head incorporates a more open combustion chamber (see “Head combustion- chambers”) it even now has the next static compression ratio (see “compression ratio”), this is only because of the piston style. The Silvertop piston contains a pretty little dome with two deeply angled exhaust flycuts, two https://4ageblacktopengineforsale99290.bluxeblog.com/63496110/4age-20v-blacktop-fundamentals-explained