jpr884

hey guys. my car makes this knocking sound, im really not sure what it could be but its definately not coming from the valve train. it didnt show up one day its been a slow progession i guess. its louder when cold. i thought maybe a spun bearing but my oil pressure is over 40 at idle and pretty much perfect. there really isnt any metal in the oil ither. i also got an extended warrenty so i dont know where to take it. i live on staten island and took it to the dealer. they coundnt tell what the noise and basically talked me out of getting it fixed because the car performs fine. i asked them if it was piston slap and they said no. BUT i really dont trust them with it, the guy even said that their really only formilliar with Cadillac engines. Does anyone have any idea what can be causen this noise or a place I could bring it thats formilliar with ls1's? i live in staten island NY but am willing to drive to get this done right. thanks alot i really appreciate it