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For Sale: Left and Right HP 340 manifolds Cast # -right 2863549 Cast # Left-2863553 These manifolds are very nice. These have been blasted and then baked with high-temp cast iron gray paint. All of the sealing surfaces have been checked for straightness and are very straight. The heat riser holes have been professionally welded in. Not sure on the date codes. I'm not sure where to look. These manifolds are ready to bolt on. $475.00 shipping included if you are in the lower 48. Located in southeast Iowa