Hi.
This is a little embarrassing.
I have pulled down my 350 boat engine, had it rebored, new pistons etc.
Reassembling (not complete) I have 2 square headed plugs/bolts (about 3/8 x 1 inch).
While I bagged and labelled most parts when disassembling these 2 where not labelled (obviously didn't think it was necessary).
I believe one fits above the oil filter - going into bell housing.

Can anyone advise where these actually go, before i get to far in.

Thanks Daryl

 

Where they plugs for the exhaust manifolds? Some looped water from the right and left manifolds.