16 Pon 0507 Mti Z
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...Ferrea valves, springs, and titanium retainers are then installed.The Ferrea double springs (with dampers) have a seat pressure of 175pounds and an open pressure of 375 pounds at an installed height of1.800 inches, as compared to the LS6 rates of 90 and 260 pounds. Sincethe MTI 455 H.O. continues generating tremendous power over 6,000 rpm,only a superior combination will ensure happy revving in the upperportion of the powerband with no valve float. View Related Article
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