My camaro z28 with ls1 has picked up an engine tap that is heard primarily when its cold outside(u can hear it all the time though) the dealer mechanics call it an inherent problem with the ls1 has anyone else heard this ?

 

Very common issue nothing to worry about, welcome to the all aluminum LS1 world.

 

Thanks ! High performance tapping

 

A very faint pattering of sorts (like an old-school sewing machine) is normal, but a very noticeable tapping is not.