Stupid Question: how to clean an engine

[Pamela <rpzzpeep@bslnet.com>]

Hi fellow type 3 fans!  I have a stupid question for you:
Many of the replies to my "Help, my '73 squareback died" delt with the
cleanliness of my engine.  It is very dirty honestly, and what is the
safe way to clean it?  Is it safe to take it and pressure wash it?  Its
still temp. out of commission.  Thank you in advance!
Pamela Peeples
'73 squareback (wounded)