I couldn't see this opening until I pulled the engine. Does this opening serve a purpose? Should I be in panic? Again its a 153 block. Thanks in advance for any input.
Thanks for the explanation Ron.
Also with thanks to Derek I'm taking care of the valve covers.
Just trying to decide on what type of breather set-up to use.
Thanks for the explanation Ron.
Also with thanks to Derek I'm taking care of the valve covers.
Just trying to decide on what type of breather set-up to use.