Failed Rocker Arm

Thanks for all the replies guys, here's all the info I got from the builder with the engine.

Here's the cam spec card:


And here's the info for the other components in the head (provided by the builder):

Pushrods: Comp Cams 2112 (7.500" x 0.080")
Valve Springs: Crane 99835-16
Retainers: COM743-16
Valves: Ferrea FERF5003-1 & FERF5005-1

I'd have to do some digging to see what seals were installed.

I was trying to find the lbs/in rating for STOCK valve springs on a magnum head, no such luck at the moment. The current springs in the head are rated at 412 lbs/in. The recommended kit for the cam specs springs (Lunati 73949-16) with a rating of 363 lbs/in.

@Dana67Dart , the bore in the pushrod was clear when I took it out, so I don't think oiling up to the rocker was an issue. There was also no discoloration of the rocker compared to the others.

Took the pushrod to work today and did a runout check on it, it's still straight as an arrow @ both tips and the center. So I think it's still good to re-use.

I'm going to double check that all the other rocker pivot bolts are torqued correctly. Does anyone know the torque that's spec'd for the bolts?

Thanks again for all the help!