1968 383 hp manifolds

That's a C-body set and while some people will say otherwise my experience is that the exit on the driver side is right into the steering shaft and makes for a difficult fit. The passenger side is the same as a B-body and will work with removal of the heat riser valve.

Jim if he was doing a 383 and the car had manual steering the C barge should work , I moked up on on my dart and it looks like you could get a headpipe to clear . and option might be to have the manifold planed at a slight angle to tip the outlet down and then spot face the bolt holes .