Help NOISY lifter or gasket??? Video...

[pilotsf]

I would tighten them up when it HOT.
Might be able to convince a warped header flange to straighten up!

You have already proven that it's a header leak, But if it was a valvetrain problem. You could have under coated them, and still located were the noise was :thumbrig:

How do you undercoat the valvetrain? I havent completly fixed the noise yet. I was told to tighten when cold or i could strip out the threads on aluminium head. So its still could be valve

 

[Cudafever]

How do you undercoat the valvetrain? I havent completly fixed the noise yet. I was told to tighten when cold or i could strip out the threads on aluminium head. So its still could be valve

LOL
Sorry wasn't to clear.
You were questioning about hearing the noise threw the valve cover, because they were powder coated!

My point was you could have used undercoating on the Valve Covers and still heard the valve train noise...... with a screwdriver, if it would have been in that area.

Yeah, not thinking about them being alum.

 

[pilotsf]

LOL
Sorry wasn't to clear.
You were questioning about hearing the noise threw the valve cover, because they were powder coated!

My point was you could have used undercoating on the Valve Covers and still heard the valve train noise...... with a screwdriver, if it would have been in that area.

Yeah, not thinking about them being alum.

Ok guys I tightened the header down really tight, But with small wrench because of the heads being aluminium and its still doing it. took it to speed shop and they said small crack and header bass by flang... I still hope its not a lifter or valve. still concerned. Did a dyno this morning and got 305 hp and 320 trq at the wheels. Video below
[ame="http://youtu.be/7eC8JSzWjZI"]DYNO RUN[/ame]

 

[pilotsf]

[ame="http://youtu.be/7eC8JSzWjZI"]DYNO RUN THIS MORNING[/ame]