Originally Posted by Schnot
A 7/8" freeze plug works perfectly. Smeared some permatex on there and it works fine.
Also something I learned was that the intake plenums on the 99+ have two more bolts than the OBS motor. So that means that there is no hole drilled in the head to put the bolts in. I just smeared a good amount of permatex on there and I think it will hold the pressure. I will try and take pictures to help describe what I mean.
Good to know...
I bought a '96 PSD long block motor a few years ago, just to have as a spare... for $300 I wasn't going to pass it up!
obviously, this info will come in handy if I ever use it.