1975 duster 360

Mopar Exhaust Systems

  1. Chuckles1980

    Chuckles1980 Member

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    What would the exhaust manifold casting numbers be on a 1975 duster 360 with a 4 barrel.
     
  2. H22A4

    H22A4 Well-Known Member

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    Left is 3614368
    Right is 3418623

    Those are the same casting numbers that were used on the 340 A bodies starting around 1972 up to when the 360 A body production ended a 1976.
     
  3. Chuckles1980

    Chuckles1980 Member

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    Is this information in a book or a website somewhere
     
  4. d55dave

    d55dave Well-Known Member

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    I believe one or both of them are also thd same for e body.
     
  5. H22A4

    H22A4 Well-Known Member

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    Have you considered googling those casting numbers to see what pops up? That would be a way for you to some double checking now that someone has kicked things off.
     
  6. Chuckles1980

    Chuckles1980 Member

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    I actually can't find the creek casting numbers for a 75 360. According to what I looked up 74 on back is different
     
  7. H22A4

    H22A4 Well-Known Member

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  8. Chuckles1980

    Chuckles1980 Member

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    Looks good to me thanks
     
  9. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    Has anyone ever seen 340 manifolds on a 360 (from the factory)??? I've never heard of 360 engines fitted with 340 manifolds (from the factory). I know they will work. Is there any documentation on this issue?? Inquiring minds want to know.

    treblig
     
  10. Chuckles1980

    Chuckles1980 Member

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    some people say they are some people say they're not. I went to a lot of mopar shows Last Summer and every 360 duster I've seen was either not original or was a 74 so I have no way of knowing
     
  11. oldkimmer

    oldkimmer FABO Gold Member FABO Gold Member

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    75 has a bell flange on the drivers side as well. At least on my factory original car with 40,000 original miles. The. NUmbers are hidden behind the heat stove. My car also has the smog pipe crossing over at the back of each manifold Mine came with a smog pump. Mine is a Canadian built car. Kim
     
    Last edited: Nov 8, 2017
  12. RustyRatRod

    RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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    Lil Red Express?
     
  13. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    Yea, a "bell" means 1 5/8" exit hole. The 340 has a flat flange.

    Treblig
     
  14. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    I was referring to A body cars but then again....I've never had a good look at a Lil Red Express motor??? Are there any others you can think of??

    treblig
     
  15. RustyRatRod

    RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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    No, but then you know how Chrysler was back then. They used everything up they could, so it wouldn't surprise me to see 340 manifolds on somethin they weren't supposed to be on.
     
  16. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    TRUE!!

    Treblig
     
  17. Chuckles1980

    Chuckles1980 Member

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    The new for 1974 "E58" 360 engine produced 245 bhp (183 kW) by utilizing the camshaft, heads, intake manifold, carburetor, and dual-exhaust set up from the past 340. i got this from engine. Plymouth Duster - Wikipedia
     
  18. Treblig

    Treblig FABO Gold Member FABO Gold Member

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    It says, "dual-exhaust set up from the past 340 engine"...if I say that I have dual exhaust does that mean I have 340 manifolds???

    treblig
     
  19. toolmanmike

    toolmanmike FABO Staff Staff Member FABO Gold Member

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  20. oldkimmer

    oldkimmer FABO Gold Member FABO Gold Member

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    Trebling, no it does not for 1975. I have seen many LRTs up here, no 340 manifolds. Kim
     
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