OH come ON. This might be an idea. I did this years ago with the SB Mopar swapped into an old FJ-40 Landcruiser. Bought some universal Chev headers, and a Mopar flange and got to work. You can cut off, add two, tweak the tubes basically rebuild part of them. I will admit tho, that the likelyhood of a close fit for other reasons might a stretch. You MIGHT be better off getting a tubing and bends kit and start from scratch