5/16 Conversion Kit Dual Pro PAC Alloy Valve Spring - Set by Ferrea
Our technology allows us to provide the highest level of performance and reliability for our customers. Our association with many of the industry's leading head manufactures has given us the opportunity to implement these race proven high quality designs for all categories of racing.
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
- Type/Material/Appl: Dual Spring. Pro PAC Alloy/Endurance Application/Racing Application
- Outside Diameter: 0.925/1.275
- Inside Diameter: 0.650/0.925
- Seat Press.: 150 lbs @ 1.750/170 lbs @ 1.800
- Open Press: 425 lbs @ 1.150"/445 lbs @1.200"
- Rate Inch: 458 lbs/458 lbs
- 1.030"/1.140"
- Max Net Lift: .700"/.600"
- This Spring requires Ferrea Titanium Retainer #E12002 and Ferrea Spring Seat Locator #SL1072 AND Ferrea Valve Guide (EXH #VG1067) & (INT #VG1066)
Benefits
- Heat-treated and stress relieved, which dramatically increases the spring's life
- Provide the stability needed for high lift
- High rpm racing engines, while minimizing the load loss for today€™s aggressive valvetrain combinations.
