Quote:
Originally Posted by JLarson
Your best bet is to pull the manifold off of the car and take it to a welder.
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You have to find out if cast iron, cast steel, or stainless steel. My bet is cast iron.
For welding cast iron. The each end of the crack have to be drilled. The crack V'ed out. Ti welding would be best with Ni-Rod 99. Bolt the manifold to a thick steel plate. Pre-heat the manifold with a oxy-ace torch to about 600F and try to hold it there during welding. After done welding. Peen the weld with the ball end of a ball peen hammer. Wrap in insulation and allow it to cool to room temp before removing the insulation.