Supertech Valve Spring Kit (All MR Engines)

We have teamed up with Supertech to bring you the solution to your low rev limit.

Kit comes with springs and titanium retainers.

Spring specs: 

• Type: Single Spring

• OutSpr.OD: 24.50mm

• OutSpr.ID: 17.90mm

• Press.Seat: 80lbs @35mm

• Press.Open: 130 @10

• Max Lift: 12.00mm

• Coil Bind: 23.00mm

• Rate: 5.00mm

Professional Installation recommended.