Our valve springs are made from high strength chrome silicon steel alloy for higher performance and durability at high rpms. The Retainers are manufactured with high quality 6AL4V titanium alloy, CNC machined for a tight fit that will ensure long durability.
Includes: 16 springs and retainers
Specs: Seat pressure 80lbs, Open pressure 198lbs @ .425" lift
Made in the USA