Center dump HP exhaust manifolds on the Left bank of
the R and RB engines could be either from a truck, or RV....they used
something like that on the "A" body 440 and 383 to clear the steering
box....every set I have had was rear exit.
Unless it is a right bank manifold which will exit on the middle.......the left
bank manifold in the 70's had provisions for the carb preheater to be bolted to
it. I know my 77 New Yorker with a 440 was that way as was the 71 440 I put in
my 67 Charger.
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