6.4 truck engine - intake question

That is the PCV valve
Thank you. That makes sense now. Better order a new one. 130k on this one.

After working on this engine - I now see why guys are dropping these engines in the old cars. The size of the ports alone. Huge! Straight in to the valve. No messing around.

LA engines- 100k rebuild time.
Modern hemi 100k- just broke in.
Syleng1