Here's a follow-up on my split exhaust manifold as seen in previous posts on this thread.
After cutting, trimming and fitting a pair of stock cast iron manifolds, I had my welder friend do his thing and assemble all the pieces. We first preheated everything using a propane cooker stand. I ordered Mike some good high-nickel rod and after welding we let it cool down real slow overnight with fiberglass insulation wrap and moving blankets. After that I had the pieces media blasted and applied hight temp cast iron colored paint that was cured in the kitchen oven. Then I mocked-up the install with a stock intake mounted on my spare engine. With these in place I could fab up a 2 to 1 headpipe.
More pics of the exhaust manifold build:
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