The engine was rebuilt by Kotzur Racing Heads of San Antonio, TX. The job was sent to them by Murillo Motorsports. The rockers are aftermarket roller rockers. I believe the heads are stock iron. Assume original although milled and rebuilt as part of the engine rebuild. Engine deck milled. The engine is running solid lifters and I'm quite sure its a '67. The main issue at the moment is that one of the push rods is moving out from under the exhaust rocker for cylinder #7! I understand that the valve springs have been replaced with "slightly" heavier ones yet appropriate for the engine. But the problem continues. It only happens with this particular push rod. I have been told that the forged steel cam is fine. I have also been told that the engine internals are all "top shelf".

Looking forward to any insight you can bring!

Thanks.

dhemi1's DAD