Originally Posted by Griff (Post 4856670)

Did you replace the valves that were making contact with the pistons?? 99% chance the valves are bent.

I did the same thing once and installed the timing chain gears wrong. Intake valves hit the pistons lightly. All 8 intake valves were slightly bent.

Originally Posted by DrFeelgood (Post 4856866)

Straightened the bent valves? Is that even possible? I thought once a valve was bent, it was junk.