I have an 02 civic lx sedan. Can someone tell me the name off the part with the 5 on it in the picture below? If you can recommend fixes. That would be great also. Thanks.

 

"No. 5 camshaft holder"

 

Had a friend with this same situation.

He tried to JB weld it back and it didn't hold.
He got another cam cap from another engine. It didn't sit flush because it was machined to the other engine not his broken one. There's a tiny gap tiny gap between the cam cap and his head.

He got a different engine head instead and that works.