Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.
Pick from Titanium or Steel retainers. Titanium is lighter weight for the ultimate in race performance, but requires periodic service intervals and inspection. Steel retainers are a little bit heavier, but have longevity like the factory pieces which is more suitable for a street car.