casting #'s

[dart1973]

I found a set of exhaust manifold's with casting #'s 4041472-2 and 4041457-2 but can't find what they are off of. The seller says these are hp manifolds off of a 440, but i don't think hp manifolds have air injection provisions. Any help would be great.

Mike
73 dart swinger
97 ram 2500 cummins

 

[340mopar]

Being the numbers start with 40 they are mid to late 70's vintage. If seller says they are HP they would have to be some sort of Police package because that was about the only HP big blocks in the mid to late '70s. How can the seller tell if they are HP but can't tell you what they are off of?


Chuck

 

[dart1973]

Thanks chuck, I can't anything to support that these are hp manifolds.

 

[chrriff]

I CAN tell you for a fact that the casting numbers posted DO belong to HP 440 manifolds. I recently acquired a factory CHP 77 Dodge Monaco with a HP 440 and the casting numbers on the exhaust manifolds are the same.