Part numbers are the same for both 383 and 440.I need to do some more reserch. Some stuff I read says the 383 and 400 have a different angle on them. I don't know if that's all the years or just the newer ones, cause worst case I have a set on a 73 charger 400 I will slap on was just looking for the c body driver side
Magnum is the HP manifolds. But yeah, it doesn't list '72 or newer.I looked at that earlier but it doesn't even list the HP manifolds, the manifold I think I wants a 2863409
manifold. I did a Google search of the 440 3418351 and the picture was quite a bit different that the 383 manifold. I called Murray Park, and he had a nice one for 150.00. Problem solved. Kudos to TTI!Part numbers are the same for both 383 and 440.
MyMopar - Mopar Forums & Information - Mopar Exhaust Manifold Casting Numbers 1958-1973
The head pipes off the manifolds will be longer for the 440.