Remove and replace phaser solenoid valve body?

Not the solenoid itself, that goes in and out without so much as a gasket...

the body that the solenoid attaches to. It's bolted to the front of the head. I've seen some off with the gaskets kind of wrecked...

I'm going to get a valve job done on my exhaust valves (I think,) and need to be able to clean the head up afterwards. Hard to say what could fall down into this thing, would like to be able to pressure wash the head and blast it full of brakleen/compressed air/wd40 afterwards.

Thanks.

Exhaust valve as pulled from head, clean intake, clean exhaust.