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3400 Rear Manifold Outlet Small

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  • #16
    Eh, it seems like more work than its work to make the 3500 manifolds work for the motor. I want to keep the cross over in the stock location for reasons being not enough room down under. I'll just do some port work to the 3400 outlet and go from there
    Geoff

    1990 Beretta GTZ Quad4 HO 5spd: Lots of work
    1995 Grand Am GT 3100 Auto: 3400 Swap in progress

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    • #17
      I originally thought about the 3500 front/3400 rear but using 2 2500 fronts is just so much better. You want to have the same flow capability on both sides of the engine and the 3400 rear will flow quite a bit less then the 3500 front.

      When it warms up i plan on making an adapter for my flowbench to compare exhaust manifolds, it's a little too cold and i don't want to work out the temperature correction formulas for 15F right now.
      Past Builds;
      1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
      1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
      Current Project;
      1972 Nova 12.73@105.7 MPH

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      • #18
        Originally posted by 90GTZHO View Post
        Eh, it seems like more work than its work to make the 3500 manifolds work for the motor. I want to keep the cross over in the stock location for reasons being not enough room down under. I'll just do some port work to the 3400 outlet and go from there
        we kept the crossover in pretty much the stock location on Redbird's 3500..




        Past Builds;
        1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
        1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
        Current Project;
        1972 Nova 12.73@105.7 MPH

        Comment


        • #19
          Yeah but dave, look how far out in front of the motor that manifold sticks out. This would be going in my wifes GAGT and im not relocating the radiator fan to clear a lil bit better flowing manifold.
          Geoff

          1990 Beretta GTZ Quad4 HO 5spd: Lots of work
          1995 Grand Am GT 3100 Auto: 3400 Swap in progress

          Comment


          • #20
            I think thats why I just left the log style manifolds on mine. Keep everything simple.
            sigpic
            1994 Oldsmobile Cultass Supreme SL
            3400/Getrag 284 5spd
            1995 Chevy K1500 350c.i. 5spd Z71
            350/NV3500 5spd
            2014 Chevrolet Malibu LS

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            • #21
              Wifes car isn't worth the trouble. On a personal build for all out power, the trouble is worth it.
              sigpic New 2010 project (click image)
              1994 3100 BERETTA. 200,000+ miles
              16.0 1/4 mile when stock. Now ???
              Original L82 Longblock
              with LA1, LX9, LX5 parts
              Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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