How did the cylinder head with the valve cover off? Any sludge?

 

Have you and your dad looked at the exhaust manifold (at the collector) and checked for cracks yet?

If it is cracked it can make some rather strange noises. Here's a link for a new manifold at a great price.
http://www.autopn.com/store/pc/viewp...dProduct=20009
I run one on my 4.6L stoker.

 

yeah it is cracked. i was thinking of aftermarket header, good or bad idea? reply on my other thread though.

 

Dang...GM has some oil additive what would quiet noisy rockers and misc engine clicks...but I can't remember what it's called now...I know we used to use it in one of the shops I worked in years ago...and it worked really well...anybody know what I'm talking about???

 

Cracked manifold...nevermind the additive stuff then. Here in Canada to eliminate these noises we just crank up the stereo!!

 

The two things I use in a motor other than oil are Marvel Mystery Oil and if that doesn't do it, a quart of ATF4.

 

I have never tried the Marvel MO but I substitute a quarter of the oil volume for Kerosene or Diesel fuel. Run no more than 20 minutes and then drain. Refill with a cheap oil and run that for 20 minutes then drain and fill with the oil you intend to use.

 

Ignore this guy his brain froze a couple of winters ago and he hasn't been right since............................................. ..Good evening WJC how was your day?

 

Think it was EOS or something like that. Not sure anymore either, but then I'm old. What's your excuse?