Ill have to look closer before i order a 3/8....but we took a 3/8 out and it was a pipe thread... then when i looked on ebay again it said the 1/2 was for hemi block
I am sure that all B and RB are all the same as far as the pickups except for the sump location.
The fitting on the end is the same as my 3/8" pickup. Looked like the fitting that screws into the block flairs to the 1/2" pipe. Again, it screwed right in.
As you can see the fitting on the block end is a bit smaller in diameter,
