PAC Racing 400 Series valve spring retainers are made from the very best American Titanium 6AL4V material available to bring you great strength with less weight. In order to have uniform material, PAC Racing buys mil run lots so they can define the tensile strength and seam characteristics. This version of titanium is widely used in the Aerospace industry, allowing for lower material costs compared to their 500 Series. These 400 Series retainers are robust, lightweight powerhouses able to tackle most street and off-road builds. The last thing anyone wants is a cheap part to ruin your day. For strength, uniformity, and reliability, you need to use PAC Racing 400 Series valve spring retainers.
