i've search gmpartsdirect and all over google and am stumped, its the line that bolts to the back of the heads near the firewall and runs up to the front of the engine...anyone know the pn on this? i appologize if this isnt a tech forum post, but wasnt sure where to go with it.

 

You can find all this in my Part Numbers list. You will have to pick what you need.

1993-1994 steam pipe behind heads, incl bolts, seals and hose to radiator 10108635

1995-1997 steam pipe behind heads, incl bolts and seals 12556260

1993-1997 coolant steam pipe seals 10108689

1993-1997 coolant steam pipe bolts 12552974

 

much appreciated