Hey guys, just did an engine swap. Here's the noise my car is making now. It is down on power, and it just sounds horrible.

Help.

 

maybe timing chain tensioner /guide?

I noticed your engine is ice cold. I noticed mine makes an odd noise when revved when cold.

Does the sound go away at all when the engine reaches normal temp?

also could be a bad coil. Does it run rough? How does it drive?

 

Ok. Figured it out. The front Cat was breaking up and all the chunks was causing backpressure. Took it all apart, and cleaned it out and now it's almost 100%. Now to get some headers.