Does anyone know what size bolts are circled in red in my picture? I took them off when I took my motor apart before I brought it to the machine shop and I can't find those bolts and need to get replacements.

I can't find the name for them, size of the bolt or part numbers, so any such information would be appreciated. I checked my Helms manual for the car and the only bolt I see is the 28mm drain plug on the front of the block behind the header.

Thanks.

 

Honda part # 11107-PK2-003

 

Thanks. Is that part # the same plug for both holes? I had a breather box which was replaced with an Endyne catch can if that helps any.

 

Yeap same parts for both holes. You will also need the crush washer as well. The first picture is a setup of the Endyn catch can setup

 

Great, thanks man!