Sorry I Run a repair and fabrication shop, so for me its a little different. I have welded on cast iron on more than one occasion. Of note is including one 427 ford low riser that is still sitting in its original special order body here in Japan. the owner had a radiator hose blow on the expressway while messing with the brain housing units of some young Japanese runners. yes he won between Tokyo rainbow and Yokohama bay bridge, but he blew a radiator hose and actually put a stress crack in the block between pistons #6 & #7. I was notified by several car friends as I have welded many "interesting projects" over the years and am somewhat a known entity in the US car scene here (primarily as an ******* but I digress). I welded the block (and machined the outside of the block to hide it. Then was asked to hold it close to chest as it lowers the value. Hint it is one of the several 427 Shelby Cobras replicas that run about the island. (PS I touched it with my noodely appendage so it should raise the value dammit!.) anyway welding cast is not a big deal if you are willing to invest the time to do it right, its just that the amount of time compared to the value is only occasionally of similar value.interesting. that is one way... no doubt stronger. may be a Level 3 DIY!
[net ref]
Ferro-Nickel Rods are cheaper than pure Nickel and are ideal for welding Cast Iron to Steel. Pure Nickel will produce a softer, more malleable weld deposit.
