I am getting ready to turn my block in to the machine shop. I have a 91 B18a1 block. It has 4 big brass plugs - one on each side. I have located a new front 28mm plug and washer. Does anyone know the part number for the other 3 brass plugs?
These are the 3 big brass plugs with the indented 14mm allen wrench faces.
I want to have the engine shop sand blast and clean the block. I want the block opened up cleaned and drained properly. Thanks.