It looks like the color is from the rocker being tilted up against the poly lock and running tilted after the rocker broke. That had to be some hellatious stress on that bearing. Everything was riding on that bearing and the side of the polylock.

Kind of funny how both rockers broke in the excact same manner on the same side of the rocker.

If I was getting coil bind would it be more prominent on my exhaust valves since the exhaust lift is .632. Intake lift is .610.

I did check the pushrod hole for blockage when I took it out to make sure it wasn't bent. Everything was free and clear.

Thanks for the suggestions guys, keep em comin

Frank

my best guess is your springs are not quite strong enough. When you are on the border line sometimes you can get away with it, sometimes you can't. You can build one engine perfectly fine, another will have bind on one or two valves.

The NHRA top fuel guys test hundreds of rocker arms and springs to get the best set they can. Rockers have slightly different heights and springs have slightly different weights even though they are all labeled the same.

Spring info from AFR's site ---1.625 O.D. Roller Dual Valve Spring with dampener,
255 lbs. on seat, .750" maximum lift

Do you know what pressures your springs are set to?

I just ordered some Crane Golds and should have them tomorrow. I'm going to replace them and see what happens.
If it's the motor then they will break too. If they don't then I know I got some bad rockers from Comp.

255#

We use both the Comps and the Cranes here both without any problem.

Have you had them on a scale and measured coil bind height? I've had both the wrong parts and out-of-the box defectives... more than once.

No I haven't, but I will now. Thanks.

Frank

Good idea to check that out.