340 exhaust manifolds

[orangeduster71]

got rusted headers would like to put exhaust manifolds back on so I can avoid having to pull the steering column and a whole bunch of other stuff. Are there any suggustions as to what kind of manifolds I can use I have a 71 340 Duster, the block however is stamped 72, if that matters at all.

 

[440Ken]

It doesn't matter, 318, 340 and 360 all physically the same exterior dimensions. The 340 manifolds are about as close to headers as you can get.

 

[Oldmanmopar]

68-70 340 are the better manifolds. 71 -74 340 360 have a different pass. side, early pass. side has a better flow..318 has totally different in inside diameter and not recomended for 340 360. I would only use the early manifolds if I was going to go to any. Manifolds do not flow near as good as equal length headers. I am going make a set of stainless headers for mine to prevent rust out , although I have seen that ceramic coated headers are really durable on cars we have worked on.

 

[orangeduster71]

Thanks for the advice, kinda was looking for something newer that would be easy to find, but I started reading some of the older posts and I guess that's not possible, car has power steering