Is this the dreaded sound of rod knock? I had rod knock in the last engine L28 that I replaced a few months ago but it didn't sound anything like this. So besides rod knock what could it be? I'm stumped and have replaced the water pump and checked for loose stuff that maybe tapping the engine to no avail. Fingers crossed that its not what I think it is or bye bye Zs until after I'm done with school.
oh and the pulleys are hooked up on the front of the car because its a pain to put the e-fans back in with everything bolted down.
L28et, bone stock with msa downpipe.