Curious to see if anyone has any ideas. I have a 95 civic es with the dz16z motor and about 200k miles. The car started driving terrible and making a loud knocking sound. So I found that the timing belt had skipped and possibly bent a valve. upon removing the head I found no visible damage to the pistons so I replaced the head only to find that it is making that same knocking sound. I am no mechanic but I tend to be a DIY kind of guy. How likely would it be that one of the pistons or crank is damaged? I dont want to trash the car because my wife loves it and it's a fun car to drive. Any ideas?

Thanks