I'm almost at a loss for words on this one, I guess just because someone is able to do some things doesn't necessarily mean that they should! I'm suspecting powder flow oxy/accetylyne welding that uses the cast iron powder. That stuff weren't chep the last time I checked, but who knows? They could be porting and machining a lot of iron and saving it and mixing it with boric acid to flux it and welding it back in. Who knows? Maybe someone found a shipping container full of Ni-Rod. Applying it back in a little at a time after nearly grinding out the whole port and duplicating a W2 exhaust port reminds me of the stories about former P.S. driver Lee Sheperd using hundreds of feet of aluminum TIG rod to make a big chevy pro stock head that worked on both NHRA and IHRA mountain motor classes. All I can think is why they didn't just get some high swirl 360 heads. This may be very well a good example of "Too much sense for one person but not enough for two"...
