Performance Valve Springs and Retainer Kit

Performance Valve Springs and Retainer KitThe XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001 2016 GM 6. 6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control. The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and

Eliminates Damage Due To Improper Tools

This causes galling on the trunnions and the rocker arm bushing surfaces

The 7/16 pushrods can handle 1000HP+ and work perfectly on stock to extreme engines

The high pressure stand pipes supply oil to the high pressure oil rail on your engine

Once this galling begins

at a faster rate to keep up with your performance built truck

Starter heat shields are not required

your valves can be pushed open by boost and drive pressure causing reversion

more powerful

it does not mean that you should not replace them for a stronger component

0L Powerstroke for an Exhaust Gas Recirculation (EGR) Cooler replacement

Direct-Fit