Sorry for taking so long to get back to you on this Vumad and Roseand, I was away for the weekend on a 4-wheeling trip and never received any notifications of new postings...good trip, but some scary carnage occurred. First time I have ever seen a steering mount break off of the headstock on the steering post. Creepy feeling to suddenly have zero steering while rolling toward a long downhill in the forest...about as creepy feeling as the thought that you were just doing 50mph on an atv, on back roads with 30 feet of drop off on either side just 10 minutes prior to the full on loss of your steering. I agree with the suggestion both you and Speedy mentioned though using an additional bung welded in. It's true, I would not opt for overcompensation of a repair but well before ever mentioning that I actually had it in my plans to have two dedicated lines to the exhaust manifold to achieve true dual cooling, and have one 3/8 line to cool the pipe. So technically speaking it is triple cooling, but not exclusively for the block. Reducing down from the half inch would be easy, there are lots of universal fittings around here that have all sizes up to half inch on the same piece, you just cut off the size you don't need. I have used them a few times on various applications and they work well. They are made of plastic, I have seen some made of brass where you just break off what you don't need. But for what the requirement was, plastic was fine and a heck of a lot cheaper.
