quickie question

[thessman]

Just looking fot the tap size on the turbo drain hole in the front of the block. looks like either 3/8 or 1/2 pipe .... hard to tell when its in the car buried. I dont want to screw up and tap my new block the wrong size.
Its a 109 SG1... thanks ! Steve

 

[Just a Six??]

I believe its 1/2" Pipe Not 100% sure tho? I am about 95% sure.