Howards Valve Spring Set 98643 Pro-Alloy Mechanical Roller Dual, 230lbs @ 1.88

Engine Valve Spring Set Model or Series: Pro-Alloy Mechanical Roller Number Of Coils: Dual Spring Damper Spring: No Overall Diameter: 1.550″ Inside Diameter: 0.815″ Spring Height: 1.880″ Seat Pressure: 230 lbs at 1.880″ Open Pressure: 550 lbs at 1.250″ Coil Bind: 1.080″ Spring Rate lbs. Takes for a longer spring life, even in rough racing […]