Ferrea Dual Valve Spring Kit with Locks (DSM / Evo 1-3)

Ferrea dual valve spring kit for the 1G/2G DSM, GVR4, and Evo 1/2/3

#KT4012

Includes:
-full set of 16 dual springs
-titanium retainers
-seat locators
-valve locks

Specs:
-Dual Spring
-Turbo/Special Alloy
-Outside Diameter: 22.75 mm/29.5 mm
-Inside Diameter: 17.1 mm/22.75 mm
-Seat Pressure: 80 lbs @ 34 mm
-Open Pressure: 180 lbs @ 24 mm
-Rate Inch: 254 lbs
-Coil Bind: 20 mm
-Max Net Lift: 13.5 mm