DIAMETER 1.650" TO 1.600" VALVE SPRINGS

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.
Item# Description Qty. Price
S10003


Diameter 1.650" To 1.600"
Type/Material/Application: Dual w/Damper/H11 Tool Steel/Roller
Outside Diameter: 1.080/1.625
Inside Diameter: 0.767/1.189
Seat Press.: 250 lbs @1.950
Open Press: 675 lbs @1.200
Rate Inch: 570 lbs
Coil Bind: 1.150"
Max Net Lift: .750

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$70.58
S10004


Diameter 1.650" To 1.600"
Type/Material/Application: Dual w/Damper/Chrome Silicon/Roller
Outside Diameter: 1.065/1.625
Inside Diameter: 0.770/1.175
Seat Press.: 230 lbs @2.000
Open Press: 600 lbs @1.300
Rate Inch: 550 lbs
Coil Bind: 1.200"
Max Net Lift: .700

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$40.19
S10005


Diameter 1.650" To 1.600"
Type/Material/Application: Dual w/Damper/Vasco Jet. Roller
Outside Diameter: 1.064/1.624
Inside Diameter: 0.760/1.164
Seat Press.: 210 lbs @1.900
Open Press: 695 lbs @1.200
Rate Inch: 675 lbs
Coil Bind: 1.050"
Max Net Lift: .750

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$65.23
S10023


Diameter 1.650" To 1.600"
Type/Material/Application: Dual w/Damper/Special Alloy
Outside Diameter: 1.065/1.625
Inside Diameter: 0.770/1.175
Seat Press.: 240 lbs @2.000
Open Press: 685 lbs @1.250
Rate Inch: 550 lbs
Coil Bind: 1.150"
Max Net Lift: .750

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$53.85
S10076


Diameter 1.650" To 1.600"
Type/Material/Application: Dual Spring/Special Alloy/Endurance Spring
Outside Diameter: 1.160/1.610
Inside Diameter: 0.835/1.160
Seat Press.: 262 lbs @2.000
Open Press: 640 lbs @1.300
Rate Inch: 540 lbs
Coil Bind: 1.220"
Max Net Lift: .750

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$82.60
S11004


Diameter 1.650" To 1.600"
Type/Material/Application: Dual w/Damper/Special Alloy Roller
Outside Diameter: 1.065/1.625
Inside Diameter: 0.77/1.175
Seat Press.: 250 lbs @2.020
Open Press: 675 lbs @1.270
Rate Inch: 550 lbs
Coil Bind: 1.180"
Max Net Lift: .750

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$73.63

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