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420a turbo manifold

Posted by Avengerdsm95, Feb 12, 2020

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  1. Avengerdsm95

    Avengerdsm95 Probationary Member

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    Alright, what is the best turbo manifold I should get for my 420a?? I've hurd people going the route of getting a 4g63 mani and swapping the flanges. Is there any good manifolds for sale or do I have to buy a 4g63 mani and make it work??
     
  2. Bleakley

    Bleakley Proven Member

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    You almost had it.
    Best manifold is the 4G63 w/ the 4g63 attached to it.

    Cant go wrong. :idontknow:
     

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  3. 609DSM

    609DSM Proven Member

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    You can weld a flange with bolt holes onto a 4g63 manifold to fit a 420a manifold. Nitrokid98 I think his channel is on YouTube has a video about it.
     

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  4. Avengerdsm95

    Avengerdsm95 Probationary Member

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    I agree but I have a 420a‍♂️‍♂️. I also hear that the srt4 mani might be a fit aswell. Idk what to do.
     
  5. silvreclips

    silvreclips Proven Member

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  6. dsmcrzy

    dsmcrzy Proven Member

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    The race manifold has long been discontinued. They are hard to come by now a days. I believe symtech and tread stone only did a few batches of these manifolds.

    Also OP don’t try to order off symtech’s website. They have been out of business for some time now.

    I have the 420a race manifold and it is pretty dang sweet.


    6D19571B-7690-42AC-AF38-27B6EC00180D.jpeg
     

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  7. Evolving_sti

    Evolving_sti Proven Member

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    Man that thing is delicious
     

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  8. Avengerdsm95

    Avengerdsm95 Probationary Member

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    That race manifold is scrumptious! Just checked symtech and they are out of stock on the mani so probably cuz they dont make it anymore. I think I'll look at getting a 4g63 mani and jimmy rig it to work LOL.
     
  9. 609DSM

    609DSM Proven Member

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    EDIT: sorry it's the whole flange itself you you take from a 420a manifold and weld onto a 4g63t manifold. Basically just swapping flanges is a way to do it,then your next step would be the piping and where everything goes. Nitrokid98 on youtube made a bunch of videos about his 420a turbo build, not all of them are very in depth but the information will help you tons
     
    Last edited: Feb 13, 2020

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  10. Avengerdsm95

    Avengerdsm95 Probationary Member

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    I've seen nitrokid's vids they are helpful. What are some good manifolds for the 4g63? Sounds like imma have to go that route
     
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  11. 609DSM

    609DSM Proven Member

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    I believe with exhaust flow the less aggressive a bend the better. With turbo systems you need to expel the exhaust gas as efficiently as possible
     

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  12. 609DSM

    609DSM Proven Member

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    Do some research one which manifold style has the best flow, look around and price some stuff out. Maybe you can get one used?
     

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  13. Avengerdsm95

    Avengerdsm95 Probationary Member

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    Been searching around and I found a mani that is made by OBX. Is it good or nah?? It looks alright but idk.
     
  14. Bleakley

    Bleakley Proven Member

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    Depending on how much money you want to spend, I guarantee you Archer or Morrison would make one for you?
     

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  15. dsmcrzy

    dsmcrzy Proven Member

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    I saw a couple on eBay I was going to send you links to but dang those have gone up in price. I have never personally owned an OBX manifold so I can’t speak to how crappy or not super crappy they are but it’s a far cry from a nice manifold esp at the $350+ price they are at on eBay.
     

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