Quote Originally Posted by Madd Maxx View Post
Coil bind or excessive spring pressure can cause that type of failure.
We replaced the lifter plastic guides too, just in case.

From the markings on the back, I can see it's a Torquer II cam, and it appears to have Patriot double springs, combination sounds about right.

We're installing an LS6 cam and new lifters for now, keeping the P springs.

I thought about excessive spring pressure as well, I thought about changing in the springs to a 918 or LS6 spring.