Manley Oval Drag Chrome Silicone Double w Damper 16pc Valve Springs 1.550 OD .725 ID New York Mets Pride Night New Baseball Jersey Playandstyle Chi chi rodriguez hi res stock photography and images Alamy New York Mets Fitted Hats New Era New York Mets Fitted Baseball Caps New York Mets Davey Johnson 1943 2025 Memories Jersey Playandstyle. The Manley Professional Series Valve Springs are engineered for serious performance builders and racers who demand reliable high RPM control and long lasting durability. Built from premium chrome silicon and H 11 tool steels with precision heat treatment and shot peening, these springs deliver robust tension and fatigue resistance across demanding applications ranging from oval track to the drag strip. Designed to maintain consistent spring pressure and minimize valve float under extreme load, they help keep your engine responsive and controlled when it matters most Designed for oval track and drag racing Chrome silicon material