Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicon steel. Their springs are heat-treated and stress relieved, which dramatically increases the spring’s life. The valve springs provide the stability needed for high lift, high rpm racing engines while minimizing the load loss for today’s aggressive valvetrain combinations.

Outer Spring Diameter: 24.61mm

Max Net Lift: 12.7mm

Inner Spring Diameter: 17.40mm

Seat Pressure: 75lbs @ 37.75mm

Open Pressure: 160lbs @ 27.75mm

Rate Inch: 215.7

Coil Bind: 23.78mm

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Function Factory Performance takes “customer service” very personally. We understand that finding the right parts can be overwhelming. Education and awareness are the principles that keep us ahead of the curve. Let us make this experience simple, easy, and awesome, so without hesitation give us a call at (480) 576-8606, feel free to direct message on our live chat or CLICK HERE to contact us via email.

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