well.. F**k! i think i have a damaged piston pin. (I have a 99 camaro Z28 82k miles and i bought it about a month ago.) The car has been doing awesome until now.. but.. I heard a clapping slapping noise a couple days ago in my motor.. so i took it to the dealer and they listened to it and thought it was a 'loose rocker'.. i didn't think that was the case because it wasn't a constant noise. It makes the noise when i let off the gas or when i accelerate and let sit at a certain rpm.. so i had some mechanics from a service shop i know of listen to it and they said its a damaged piston pin..
I think i'm going to just buy a long block.. i dont think i want to go through the nightmare of repairing it. Any suggestions?

 

IMO, there are hundreds of other parts that would fail before the piston pin. Piston pins are BEEFY, even from the factory. I'm willing to put money on that it's something else.

 

Im with this guy, ive never heard of a pin failure in a street LS1.

 

Piston slap? Get a sound clip posted if possible.

 

i'll try to get a sound clip.. but i thought the same thing.. its would take a lot to damage a piston pin.. im having another mechanic friend of mine check it out soon. the car drives good but if i get into higher rpms(which i dont anymore) i will hear the clapping slapping clanging whatever noise. i'll see if i can get a sound clip.