ENGINE BLOCK FREEZE PLUGS

[PaulRV6]

Can someone advise what the proper plug size I need for the four block freeze plugs are? I want to use brass since I just noticed one of the steel plugs has a hole in it. I see there are different cup heights used looking at the advance auto website. I am going to replace all four on the block. Thanks for the help.

 

[TexasT]

Melling MPE137BR is a full set. not sure what the sizes are but it looks like rockauto lists several different ones for the 3.8L in the singles.