Threaded Hole in Side of Block

BeerElf

Founding Member
Oct 16, 2002
85
0
6
Hillsboro, OR
Does anyone know what size the threaded hole between the front two freeze plugs is(left in pic)? The one towards the back (right in the pic) is 1/4 npt but the other one is smaller and the FRPP plug and dowel kit did not have anything that fits. There's also another one on the other side dorectly under the rear most freeze plug.

threaded_hole.jpg
 
  • Sponsors (?)