Supertech Valve Springs (Evo X)

Supertech Valve Springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability at high RPM ranges.  The Supertech materials also provide for  better memory, which translates into higher performance.

Computer designed to ensure that wire stress levels do not overpass their limits, Supertech Valve Springs are manufactured for long term durability even under the most extreme conditions.

Supertech Valve Springs are sold *Per Valve Spring*. For Example, when order for a Model that requires 16 Valve Springs, order ‘Quantity: 16’

Coil Bind: 20mm
Inner Spring (OD/ID): 20mm / 15.2mm
Max Net Lift: 14.5mm
Outer Spring (OD/ID): 27.5mm / 20mm
Pressure (Open): 185lbs@11.5mm
Pressure (Seat): 75lbs@34.50mm
Rate: 9.6lbs/mm