Ferrea 1.225in to 1.570in Diameter 1.04/1.56 OD 0.74/1.145 ID Dual w/ Damper Valve Spring | Universal (S11012)

1.225in to 1.570in Diameter 1.04/1.56 OD 0.74/1.145 ID Dual w/ Damper Valve Spring - Set by Ferrea

Harmonics or high frequency fatigue is present in all racing engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear.

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

Please Note: Picture are for representation only. Actual product may vary.

Features

• Diameters 1.225 To 1.570
• Type/Material/Application: Dual w/Damper/Special Alloy Roller
• Outside Diameter: 1.04/1.56
• Inside Diameter: 0.74/1.145
• Seat Press.: 245 lbs @1.950
• Open Press: 585 lbs @1.270
• Rate Inch: 470 lbs
• Coil Bind 1.170
• Max Net Lift: .680

Benefits

• Strict quality control procedures and cycle testing ensures consistency from batch to batch.
• Provide the stability needed for high lift
• High rpm racing engines, while minimizing the load loss for today€™s aggressive valvetrain combinations.

Applications

• Universal

What's In The Box?

• 1 - Valve Spring 

Warranty

• No Warranty