Bolts on block

Can anyone tell me what size bolts I have circled in the pictures below? Part numbers would help since I may end up needing replacements. They’re found on the front and back of the B18A short block. (The 2nd picture I uploaded upside down)

Thanks.

They are 28mm, PN 90001-PM3-003

http://www.hondapartsunlimited.com/acura/bolt-drain-plug-28mm/90001-pm3-003-acura/

All 3 are the same bolt? The first one I think is right, but I thought the ones on the back were for the breather box which I since replaced to hook up to my Endyne catch can.

Shoulda never taken the damn things off when I was getting the block ready to be machined! UGH.

might be this one
http://www.hondapartsunlimited.com/acura/bolt-sealing-16x9.5/90084-657-000-acura/

How do you find stuff on that page when they have no pics.

LOL well im actually looking at HPU diagram then posting a link to the direct part :slight_smile:

Found em. They’re actually different than what the stock B18A has since they’re just 14mm plugs with the alan/hex key. I have an Endyne catch can, which I should’ve mentioned, and it’s these parts, if anyone else runs into the same issue as me.