Smith Innovations is now offering 1/2" laser cut header flanges in mild steel for the Toyota 18rg engine. The ports are gasket matched.
Due to the nature of mild steel, some of these may have light surface rust. These are A36 mild steel with the mill scale removed for ease of welding. They are not deburred to help keep the costs down. Image is of the front and back side
Do you need a different thickness, port size, material? We can do it!
Designed and cut in the USA!