anyone know the location of the pcv valve for a 2003 seville 4.6 northstar???

Remove the plastic engine beauty cover. In the left (front end) of the right (rear) camshaft cover is a plastic line which snakes into the front (accessory belt) end of the engine. There is no PCV valve per se: there is a fixed orifice in the cam cover which is connected to manifold vacuum in the front of the intake manifold. The clean air source is the plastic line which comes from the throttlebody to the (right) end of the front cam cover.

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Sorry for the parentheses: A sidewinder engine defies accurate parts location if you remember good ol' fore-and-aft configured engines............

anyone know the location of the pcv valve for a 2003 seville 4.6 northstar???
You don't have a Valve

They finally went to an orifice after 40 years

ok thanx