Edelbrock B4B, Need Identified

Discussion in 'Street/strip 400/430/455' started by Christopher Spouse Drew, Apr 15, 2019 at 1:53 PM.

  1. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    So im trying to get parts for my 74 block 455 build. I'm using one of the EFI companies out there (holley sniper or fitech) and im looking for manifolds and I came across someone selling this and I noticed that this B4B has one set of threads and the new ones from edelbrock has 2 sets of threads for different applications. So how old is this B4B and will it work with EFI? Thanks guys!
     

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  2. TrunkMonkey

    TrunkMonkey Well-Known Member

    I think there are three versions.

    First one(?), is the square bore with the front to rear bores open. Then (second?) the one in your image, *I think* is correct placement of the pad for spread bore to fit correctly so the stock snorkel air cleaner will work
    And the "latest" with the dual threaded bosses so a square bore or spread bore can be mounted but is set more centered on the runners to perform better.

    I have the last one (dual thread bosses), and have the FiTech EFI for the 430 build I am doing.

    The FiTech has dual mounting flange holes, so if can be bolted to both square bore and spread bore pads, and I already fit checked it to make sure it sets and seals properly and it appears to be fine. But you may need an adapter or steel plate. (the bottom of the throttle body has plenty of area without passages so it looks like sealing would not be an issue).

    If you want, I can take pics of my B4B manifold and the FiTech gasket.
     
  3. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Well this guy has to get back with me for a price. And if he gives me number under 200 I'll probably get it, if not, I'll get the newest one like you have.

    But yeah let me see your setup and it will help me when I put it together.
     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Looking at the picture, I bet it would be easy to drill and tap extra holes if you needed to. See if the price is right.
     
  5. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Yeah I was thinking about using my table drill to get straight holes and tapping them. But yeah we'll see about the price...
     
  6. hugger

    hugger Well-Known Member

    All B4B's are centered , the "Performer" has the carb pad set back to allow the GS breather to align better. The one pictured has the modern "Performer" carb pad which is what comes on the B4B since the mid/late 80's then they stopped production till about 05 or so iirc. But someone has welded up the other holes for some reason or another unless it just made it thru QC somehow. Because all the "Performer" pads are dual drilled
     
  7. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    I really doubt it was welded up, but you might be right about the QC. Or maybe for a short time this how they did them. The guy I'm potentially buying from seems like he has a collection of intakes and it could be 20 years old or older..
     
  8. hugger

    hugger Well-Known Member

    I can't imagine a situation where Edelbrock would purposely put only the Qjet pattern when it can accommodate both the 4150 and the qjet. I had one once that one of the qjet holes protruded into the Intake runner and was of course a vac leak, I had to plug that hole.
     
  9. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Yeah idk, when I talk to this guy I'll have to ask.
     
  10. 436'd Skylark

    436'd Skylark Sweet Fancy Moses!!!!!

    200-250 is the going rate.
     
  11. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Okay he wants $ 125 and i really like that price, but i don't want to buy something useless. I need to know this will work with one of the EFI I choose, and i read that the earlier manifolds had bad sealing and i dont want to buy one of those.
     
  12. hugger

    hugger Well-Known Member

    $125 is plenty fair and yes it will work just fine , worst case scenario the flanges need to be trued,..its not the early design
     
  13. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Alright, well it looks like I got a new manifold!
     
    RoseBud68 and johnriv67 like this.
  14. TrunkMonkey

    TrunkMonkey Well-Known Member

  15. TrunkMonkey

    TrunkMonkey Well-Known Member

  16. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    That's awesome, so the set of threads I have still should match up, thanks for the pictures!
     
  17. TrunkMonkey

    TrunkMonkey Well-Known Member

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