Ferrea 75lbs Dual Valve Springs & Titanium Retainers KIT Elise Toyota Celica GTS GT-S 2ZZ-GE KT4030

Ferrea KT4030 Kit Contains the following: 

Dual Springs #S10123 (16)
Titanium Retainers #E11097 (16)
Seat Locators #SL1105 (16)
Valve Locks #K10094 (16)
 

Ferrea Valve Locks are manufactured from high quality 4140 chromoly bar stock and machined to exact tolerances. The locks are heat-treated for maximum strength and finished with the black oxide for an attractive appearance.

The design and processes on these dual valve springs are optimized to reduce valvetrain harmonics and provide greater stability on high horsepower applications. We use high grade premium super-clean PAC alloy materials and maintain tight tolerances for those unique aftermarket cylinder heads. 

Ferrea takes great pride in offering premium quality Spring Seat Locators. Fully CNC machining in-house from 4140 chromoly alloy for different applications. Each piece is crafted to exact tolerances OD & ID specs and insure flat, parallel spring pad to the bottom surface. Heat treatment consists of a hard Nitrided surface for unmatched toughness and anti-wear characteristics. 

Ferrea is pleased to offer our Pro-Series Titanium Retainers including sizes that fit both traditional Domestic springs and Sport Compact springs. Precision CNC-machined from aerospace quality titanium, these Pro Retainers are fully heat-treated and finished to exact tolerances, adding strength while offering a 40% weight reduction over conventional steel retainers. Examine the overall quality of Ferrea’s Pro-Series Retainers and see why professional engine builders demand Ferrea Racing Components.