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Late Model EGR/AIR Intake on Earlier Engine?

Discussion in 'Small Block Tech' started by knucklebusted, Mar 12, 2024.

  1. knucklebusted

    knucklebusted Well-Known Member

    Can you use a later model intake from say a 1976 with EGR and AIR injection on a 1968 engine? I know you can block off the EGR but do the AIR injection holes cause any alignment issues?
    [​IMG]
     
    knucklebusted, Mar 12, 2024
    #1
    MrSony likes this.
  2. Briz

    Briz Founders Club Member

    Dont know for sure but I'd say it would not work. Probably could be made to work but why go to the trouble when theres correct intakes available.
     
    Briz, Mar 13, 2024
    #2
    knucklebusted likes this.
  3. knucklebusted

    knucklebusted Well-Known Member

    Not mine. A buddy picked it up at a swap meet. Probably the only Buick thing there besides model cars and hub caps.
     
    knucklebusted, Mar 13, 2024
    #3
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    It would certainly bolt on, bolt pattern is the same for all BBB heads. The A.I.R. rails are pressurized by the air pump, and blow air into the small holes in cylinder heads meant for A.I.R. Those holes lead to the exhaust ports. No holes in the heads, no where for the air to go, not that it matters with no air pump. I'd say you can use it. EGR just gets blocked off with a plate. They are fugly intakes, but use it if no other option.
     
    LARRY70GS, Mar 13, 2024
    #4
    patwhac and knucklebusted like this.
  5. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    pretty sure you can block off the air ports. I know you can the heads on later engines to use any intake.
     
    nekkidhillbilly, Mar 13, 2024
    #5
    knucklebusted likes this.
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    For sure, but there are no A.I.R. holes in 68 heads, so nothing to block off.
     
    LARRY70GS, Mar 13, 2024
    #6
    knucklebusted likes this.
  7. Dano

    Dano Platinum Level Contributor

    Funny, I just assumed it was a 350 intake.
     
    Dano, Mar 13, 2024
    #7
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  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Could be, Greg hasn't told us. Not that it matters.
     
    LARRY70GS, Mar 13, 2024
    #8
    knucklebusted likes this.
  9. Dano

    Dano Platinum Level Contributor

    Well then I should've said funny, I assumed it was a 350 & you assumed it was a 455:).
     
    Dano, Mar 13, 2024
    #9
    knucklebusted likes this.
  10. knucklebusted

    knucklebusted Well-Known Member

    I put it in the small block group because it is for a 68 350 2-bbl engine that a friend wants to convert to 4-bbl. He found this at the KYANNA (KY & IN) swap meet in Louisville. Another buddy and I were counting Buick specific items. We found 8 hub caps, 2 model cars and a few brochures. Nothing engine related. My other buddy must have bought this before we got there.

     
    knucklebusted, Mar 13, 2024
    #10
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  11. Dano

    Dano Platinum Level Contributor

    I don't know that I noticed is was in the SBB tech section.
     
    Dano, Mar 13, 2024
    #11
    knucklebusted likes this.
  12. Stevem

    Stevem Well-Known Member

    One thing you do not want to do is to use a Carb that was made for a EGR Intake with no EGR hooked up or on a Intake with no EGR without recalibrating the Carb richer.
    Without doing such you will have a surging ping monster to deal with!
     
    Stevem, Mar 14, 2024
    #12
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  13. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Neither did I. Probably saw the topic in new posts, and answered it never going into the SBB Forum.
     
    LARRY70GS, Mar 14, 2024
    #13
    knucklebusted likes this.
  14. knucklebusted

    knucklebusted Well-Known Member

    He only has the intake. He's more than likely going to run an Edelbrock that he already has on it. Not sure about any tuning or anything about the Edelbrock.

    I was just trying to insure the intake would work if the ports were plugged.
     
    knucklebusted, Mar 14, 2024
    #14
  15. MrSony

    MrSony Well-Known Member

    Hello again
    Lol

    Man, my picture is certainly coming in handy.
    I don't even have that intake anymore.
     
    MrSony, Mar 21, 2024
    #15
    knucklebusted likes this.
  16. knucklebusted

    knucklebusted Well-Known Member

    Same guy as facebook. LOL
     
    knucklebusted, Mar 21, 2024
    #16
    MrSony likes this.
  17. MrSony

    MrSony Well-Known Member

    Indeed.
    My first Buick 350 was the engine that intake was used on. My 16 year old dumb self didn't put the oil galley plugs in behind the timing gear, so I broke it in and drove it about 10 miles with probably as much oil pressure as a lawnmower. Fixed the issue and it only lasted 5500 miles before it ate the rear two rod bearings. Cam was fine though lol.
    FB_IMG_1711052293718.jpg FB_IMG_1711052302945.jpg
     
    MrSony, Mar 21, 2024
    #17
    Dadrider, Mark Demko, Jim Nichols and 1 other person like this.

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