Our EC 270 Dual Valve Springs are made for big cams and higher RPMs in the GX390/420 Big Block, Briggs & Predator V-Twins

These valve springs add reliability, performance, and greater rpm range on racing platforms.Valve Spring (set) Dual valve springs are used in all our race engines. Call for specific retainers for your individual engine. No Warranty

Valve Spring Specs:
- Spring Pressure
- Install Height 
- Coil Bind Height