Welding Cast Iron Headers. Cast Iron Cylinder heads can be repaired with average welding skills by following a few basic principles of welding cast iron Step 1 Repairing cast iron cracks are straight forward and any one who can weld mild steel can cast iron by following a standard procedures. MIG welder is highly possible for welding cast iron.
However there are a few things you want to remember when welding cast iron to steel. Grind a deep vee notch on the two pieces and weld a little ways stop and tap the welded area with a hammer not hit it but tap it repeat the process until your part is welded. There are several types of nickle welding rodselectric available and some can be quite costly running about 30 or more a pound but more expensive does not translate to better in the sense that they.
Welding cast iron in a cool manner without preheating and using minimal heat is thought to help this by reducing the overall temperature.
How to Repair Cast Iron with JB Weld - YouTube. This is just the nature of casting vs welding. I have a cast iron welding project as well and asked another more experienced welder about it. If you meant Ford 427 before you are probably aware of the long cast headers.