I just got my engine block back from a machine shop two days ago. After all parts installed, i figured out that one of cylineder heads has a little crack from last time detonation, so i did air pressure test, the pressure ratio seems not good, even though the engine can run, only three of them work effectively. should i just take my engine head to rebuild or send the entire engine just in case? do you guys think that is a small issue? coz i am so worried about my engine. please give me some suggestion thanks !

 

You need to talk to your builder, he'll tell you what he wants.

 

thanks