I have decided I ought to not have a bodged toegther EGT system now the car is together nicely, so I want to weld a couple of 1/8" BSPT "holes" in my manifolds. (They are too thin to tap on their own)
I'd prefer to buy something ready made (and cheap!) as I am short of time, but I do have a 1/8" BSP tap if I can find a bit of stainless bar or thick wall tube, or even a fitting I could drill out and retap. The root diameter of 1/8" BSPT is approx 8mm. (sorry for mixing units)
Thanks