Even though the Blacktop head features a additional open up combustion chamber (see “Head combustion- chambers”) it however has a higher static compression ratio (see “compression ratio”), this is only because of the piston design and style. The Silvertop piston incorporates a really tiny dome with two deeply angled exhaust https://4age-blacktop-engine-for67321.free-blogz.com/78699210/the-2-minute-rule-for-jdm-toyota-4a-ge