i dont know what type of turbo will fit my exhaust manifold. outside diameter is 2 1/4 by 3 3/4 and the inside diameter is 1 1/4 by 2 1/4 inches. I think it is an odd size. The bolt holes are 3 inches apart one way and 1 1/4 inches apart the other way. It is an older log style Dinan manifold. I hope these pics will help identify what flange this is, if you need more pics just ask.











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