engine noise

engine noise

Again thanks for the replies,

I've been using a stethoscope, long extension, wooden dowel and a piece of hose to help locate the noise. They all make the noise sound a little different but I can't pin point exactly where it's coming from.

Did you by some chance get the wrong header gasket? I think 318 and 360 ones make a difference.

I'm pretty sure they are the correct ones.

I heard a noise like that once, on a Pontiac 400. Turned out the builder had put Mallory metal in the crank to balance the counterweights. Metal protruded and was hitting the distributor shaft. If you run out of ideas, shouldn't take too long to pop the dizzy and oil pump drive gear.

I'll double check the oil pump drive gear. I don't think my engine builder balanced the crank.

Also, removing the accessory drive belts is as easy as a few seconds. I would do that first before I tore into anything. Sounds can transmit like a big dog. If it's something the belts are turning, how easy would that be to fix?

I've already taken off the intake, when I get it back together and if there's still a noise I will remove the belts to eliminate that possibility.

I took the intake off this morning. The spider and the dog bones are there and they don't feel loose.

How do I check if the lifter holes are oriented correctly?

What else should I be checking while I have the intake off?