KDD VALVE SPRINGS 6.0/6.4 POWERSTROKE Choose Springs:Stage 3 - 120lb Competition Thanks to efficient design and

Thanks to efficient design and use of material

✔ Independent Adjustments – Adjust your own parameters for personalized tuning (experience recommended)

All new parts solve these problems

Warranty: Mishimoto Performance (MP)

KDD VALVE SPRINGS 6.0/6.4 POWERSTROKE Choose Springs:Stage 3 - 120lb Competition Thanks to efficient design andStock Plus (Stage 1 Standard) For a mild bump over used factory springs, we use these quality USA made valve springs as the standard spring for our popular o ringed cylinder heads, perfect for the daily driver, tow rig, or mild performance upgrade looking for solid reliability. Used factory springs typically have around 60 70 psi at 1. 865" installed height. These have 80lb load @ 1. 825", we use these in all of our stock replacement cylinder heads.