Weirde noise coming from passenger side of engine...
 

It seems to be coming from the front part of the motor though. I will try to record it tonight and post it so you guys can tell me what you think it is. It just started happening the other day, and it comes and goes a little bit. Do I need to remove the intake to get the passenger side valve cover off?

I had this happen i think.. there is a hole on the passenger head on the front.. i just plugged it with something..they are on the back to but you say its comin from the front.

They are not the stock heads. I just bought the car, and the guy could only tell me that the heads were "Ford Aluminum Heads" They say SVO on the side, and they are aluminum so I am assuming they are the y or x heads. The car doesn't seem to have any power loss, but the noise is just bugging me, I hope it's not something int he valvetrain...

any header bolts missing? or loose?

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is the smog stuff conected to the head?

what kinda noise? does not having the smog stuff hooked up change anything?