Swapping to a larger cam? Learn how to change your valve springs with the heads on or off the engine.

Read up on everything you'll need to know about choosing the right valve springs and what will work best for your Mopar. Check out details along with photos only in Mopar Muscle Magazine ...

The installed height of a valvespring is the distance from the base of the spring to the bottom of the retainer when the valve is closed. If the distance is too short the spring will be under too ...