Although the Blacktop head features a far more open combustion chamber (see “Head combustion- chambers”) it still has an increased static compression ratio (see “compression ratio”), this is only due to the piston design. The Silvertop piston incorporates a very modest dome with two deeply angled exhaust flycuts, two average https://jdmtoyota4a-ge83714.nizarblog.com/31497308/not-known-facts-about-4a-ge-engine-for-sale