vortec max heads

[banker099]

is it an 07 classic?...they should have 317s on them, not sure about the newer body style ones

[2007chevy5.3l]

Unfortunatly no one seems to know. It is the nnbs 07

[r.barn]

Tell your friend to go up to the dealership, pop the hood and look.

You should be able to clearly see the head stamping on the pasngr
side head towards front of engine.