welding cast iron heads

[RacerRick]

Re: welding cast iron heads

My machinist does lock n stitch and swears by them. He would rather stitch the crack then have them welded because it can warp the head badly, even after normalizing.

Then you get into milling the head flat again, checking the guides and maybe reaming them, and a new valve job. Seat inserts can pop out also if they were not installed properly the first time.

[skipkinnan]

Re: welding cast iron heads

There are companys that specialize in welding heads and cast iron. mostly diesels like Cat. I was at a GM foundry where they put defective blocks back in the furnace to get them hot then they take them out and weld them with oxy act. with the same cast material that the blocks are made from.