Even though the Blacktop head incorporates a extra open combustion chamber (see “Head combustion- chambers”) it nevertheless has a better static compression ratio (see “compression ratio”), this is solely as a result of piston style and design. The Silvertop piston incorporates a pretty compact dome with two deeply angled exhaust https://andrennnkj.canariblogs.com/detailed-notes-on-blacktop-4age-for-sale-46505839