[cave of az]

Hello everyone, I just replaced my 5.7L engine with a re-manufactured one because the plastic intake gaskets GM installed failed. Just before this failure I heard a knocking from the engine bay. Thought it was the engine since thats were the sound was coming from.

With this replaced engine I still have the knocking. More so when under power. Sounds like the fly wheel area id where its coming from.

I still need to have the engine scanned to have the cam retard set. I have an appointment Monday with my local GM dealership. But now after the same plastic gaskets were installed rather than the new ones that are metal . The trust is gone.

Has anyone here ever had a knock from the tranny? Not the normal start up knock. But a real knocking sounds like tapping with a ball peen hammer at different intervals.

Thanks in advance.
Jimmy