Small block intake

Small Block Mopar Engine

  1. Garrett Ellison

    Garrett Ellison Amateur driver on public roadway, do not imitate.. FABO Gold Member

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    One thing about a 20 pound intake vs a 40 plus pound chunk of iron, though. It's a whole lot easier on your back when it comes time to install it.
     
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    • QuickDart360

      QuickDart360 Well-Known Member

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      Perfect rear wheel backspace!! Do you by any chance remember what backspace was on the rear wheels? 15x7 or 15x8's?
       
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      • Wyrmrider

        Wyrmrider FABO Gold Member FABO Gold Member

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        I'm trying to remember
        that's a 72 c body wagon so the front end is like my 73 new yorker
        (tke 73 big wagon had B body front end and c body back end)
        so chassis any up to 78 c body cop or tow pckage parts
        the t bars are 1.08 instead of the .98 you have makes a big difference
        sway bar would ave to be ftermarket if you want to go bigger
        cordoba rear sway woks-you need the spring plates and you can add a leaf
         
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        • Nat

          Nat Well-Known Member

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          love that wagon , hope you get it running the way you want . Great car , you don't see many that is for sure . so much better than a mini van . with a few modifications it will be the ultimate highway cruiser . what kind of mpg is it getting now ?
           
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          • 496 polara

            496 polara moparts id gch

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            Everyone has covered it so it depends on your budget.

            *Free flowing exhaust with 2.25 pipes.H pipe if you care.long case dynomax super turbo mufflers give a nice rumble but run what you like.

            *Ignition upgrade of some sort and tune the distributor advance.Likely more initial and make sure the vacuum advance works.

            * Run whatever 4 bbl intake and carb you prefer.A dual snorkel intake is a plus.Run some ducting to a cooler air source.
            I just did a used Performer intake on my truck 360.

            *Anything you do beyond that is up to time and money.These mods will support whatever you do later.
             
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            • Marcohotrod

              Marcohotrod Well-Known Member

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              cragar ss - backspace about 4.25? - 15x8 . stock springs and shocks. thanks
               
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              • rumblefish360

                rumblefish360 So close, yet so far away FABO Gold Member

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                2.25 exhaust pipe?

                Screw that! 2-1/2, H or X.

                Longer the muffler the quieter the exhaust note in the cabin and out the rear.
                 
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                • Wyrmrider

                  Wyrmrider FABO Gold Member FABO Gold Member

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                  I used 440 Imperial/ new yorker mufflers on mine
                  I also like the 36 inch long motorhome turbo muffler- thats oal -shell is shorter -2.5 in and out
                   
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                  • Marcohotrod

                    Marcohotrod Well-Known Member

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                    a mostly stock 360 in a very heavy vehicle is very happy with 2.25"
                     
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                    • pt70

                      pt70 Well-Known Member

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                      Another option; keep the 2 bbl. It's good for up to ~3,000 rpm. At 70 mph you're only revving at about 2,300 rpm. The first thing to do is to replace the timing gears. The nylon gear your car came with usually lasts about 100,000 miles or a little more. If the teeth chip off it will skip a tooth or two and bend push rods and valves. How do I know this? Yep. Someone mentioned retarding the cam timing. Never tried it but it should work. More power. [Those were bad years for emissions = detuning engine power].

                      Next thing to check is the heat riser valve on the pass. side exhaust manifold. It must move freely.

                      If you have an EGR valve, you can try it with it or without it by disconnecting and plugging a hose.

                      Distributor modifications can be made.

                      Your car weighs over 5,000 lbs. with 3 passengers. It's a lead sled, and the 360's working hard. Someone mentioned 3.23 rear gears. A good choice for that car. And probably wouldn't change the mileage much.

                      Happy Motoring
                       
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                      • LO23M8B

                        LO23M8B Well-Known Member

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                        I agree a stock one works fine and is cheap. TQ does work nice 71 up manifold and do block off the heat riser. Or you can use a earlier one with a avs carb. (eddy ) or a small holley. If your going to be running 70 I'd leave in the 2.76's for fuel economy. If you ever want to wake it up remove and cut the heads that 360 has no compression. And second as a stocker just put the stock 340 cam in it. It will run real nice.
                         
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                        • BLIMP

                          BLIMP Member

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                          I think I'm going to go with this stock piece. Initially was thinking aluminum because I'd be able to save a few pounds. But like a few people mentioned, when this things weighs more than 2 tons, what difference does it make. And a shot of the engine bay. 20190421_185102.jpg 20191209_161100.jpg
                           
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                          • RustyRatRod

                            RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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                            I agree. I think it would be perfect.
                             
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                            • Wyrmrider

                              Wyrmrider FABO Gold Member FABO Gold Member

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                              I'd not block off the heat riser
                              340 cam kills your dynamic compression and mileage in a low compression motor and not in a heavy vehicle with tall gears
                              I would not use one if it was free
                               
                            • Nat

                              Nat Well-Known Member

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                              I like that air cleaner you have , car should go well with that intake . Good luck
                               
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