Lightweight Racing Shovelhead™ 74 1966 to 1977 Valve Spring Kits
- Max Lift: .600"
- Installed Height: 1.510"
- Seat Pressure: 152 lbs.
- Open Pressure: 387 lbs @ .600" Lift
NOTE: Spring Kit 20-2110 features 7075-T6 Retainers offset .070" for taller installed height. Basewashers are counter-bored to accept a .665" OD seal.
Springs are engineered for each application using proprietary advanced spring design, simulation and analysis software. Engineers pay special attention to cam and spring harmonics, stress, mass and operating rpm. Premium grade, super clean ground chrome silicon wire is x-rayed at regular intervals to check for inclusions, heat treated and shot peed to ensure maximum spring life.
Kits include 4 retainers, 4 springs, 4 steel keepers and 4 steel basewashers.
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|20-2110||7075-T6 Retainers (20-2100)||$98.60|
|20-20450||Steel Retainers (20-20450)||$98.60|