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exhaust

Discussion in 'Engine & Performance' started by Elizabeth Turbiak, Jul 11, 2019.

  1. Elizabeth Turbiak

    Elizabeth Turbiak Junior Member

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    Joined:
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    Location:
    New York
    First Name:
    Elizabeth
    Truck Year:
    1981
    Truck Model:
    K10
    Engine Size:
    350
    any good exhaust suggestions for a 350? It’s a dual exhaust .
     
  2. 4WDKC

    4WDKC Full Access Member

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    Truck Year:
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    Truck Model:
    V10
    Engine Size:
    350
    Its matter of opinion on sound volume and acceptable drone levels. Welcome btw
     
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  3. Elizabeth Turbiak

    Elizabeth Turbiak Junior Member

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    Location:
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    First Name:
    Elizabeth
    Truck Year:
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    Truck Model:
    K10
    Engine Size:
    350
    Ok I’ll look into it more thanks
     
  4. B.K. Cunningham

    B.K. Cunningham Full Access Member

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    Location:
    Spokane, Washington
    First Name:
    Bryan
    Truck Year:
    1974
    Truck Model:
    25 Hundred
    Engine Size:
    350
    I just recently did mine in my 74, stock 4 bolt 350 small block and stock manifolds, dual 2 1/4 pipe with an H crossover and 2 single chamber super v mufflers kicked out behind the wheels. It was the best option for my stock engine, if yours is modified then you may want to look into 2 1/2 or bigger.
    Also, the show engine masters on motortrend did a comparison of the straight pipe vs x pipe vs H pipe and there wasn't a lot of difference in that application (dyno), H pipe being the most simple and cheapest was a no brainer for me.

    best of luck
     
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  5. Elizabeth Turbiak

    Elizabeth Turbiak Junior Member

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    Location:
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    First Name:
    Elizabeth
    Truck Year:
    1981
    Truck Model:
    K10
    Engine Size:
    350
    Thank you so much i appreciate It
     
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  6. DoubleDingo

    DoubleDingo Vacuum Leaks, The Root Of All Evil

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    Location:
    A few hundred feet above sea level
    First Name:
    Shane
    Truck Year:
    1981, 1965
    Truck Model:
    81-C20 Silverado Camper Special-TH400-4.10s; 65-C20 with 4:57 gears and Borg Warner Overdrive
    Engine Size:
    Carb'ed Vortec 350; 1972 L48 350
    Welcome.

    Me I like single exhaust, the factory guys knew their stuff and I have not noticed any drop in power compared to my dual exhaust vehicles that I used to run. The '81 is 2.5 all the way to the muffler, then it chokes down to 2.25 out and over the axle.
     
  7. DoubleDingo

    DoubleDingo Vacuum Leaks, The Root Of All Evil

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    First Name:
    Shane
    Truck Year:
    1981, 1965
    Truck Model:
    81-C20 Silverado Camper Special-TH400-4.10s; 65-C20 with 4:57 gears and Borg Warner Overdrive
    Engine Size:
    Carb'ed Vortec 350; 1972 L48 350
    One thing I noticed recently is glasspacks really allow the power to be generated and produce a good sound. And you can add short ones as resonators to complement the longer ones if you want to.
     
  8. Arkansas_V8

    Arkansas_V8 Proud Redneck

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    Location:
    Springdale, Arkansas
    First Name:
    Brent
    Truck Year:
    88
    Truck Model:
    V20 Suburban
    Engine Size:
    5.7
    I vote for 4 foot of straight pipe with turndowns. 2.5" pipe. Yes, this is my daily. 20190711_104707.jpg
     
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  9. Crispy

    Crispy Full Access Member

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    Location:
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    First Name:
    Chris
    Truck Year:
    1989
    Truck Model:
    Suburban V1500
    Engine Size:
    5.7
    Exhaust is like pizza preference. Everyone has an opinion and only a small few are terrible lol.

    The previous owner of my Suburban had it set up like this:

    Factory manifolds and cheap turbo mufflers being fed by 2.25" dual straight pipe. No crossover or x pipe and they exit just behind the rear wheels. Its loud, raspy and obnoxious. Its also pretty much stock so thats not exciting at all lol.

    I going to start by replacing mufflers with a longer body 2 chamber to see if it mellows out. If not I'm going to add high flow cats further upstream
     
  10. Charlie

    Charlie Full Access Member

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    Location:
    Euless, Texas
    First Name:
    Don
    Truck Year:
    1974
    Truck Model:
    Cheyenne 10 LWB
    Engine Size:
    350/TH350/AC/4 BBL Quadrajet
    :welcome:
     
  11. Arkansas_V8

    Arkansas_V8 Proud Redneck

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    Truck Model:
    V20 Suburban
    Engine Size:
    5.7
    Lol, was that a jab? You are right as to preference. I like it loud.
     
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  12. Frankenchevy

    Frankenchevy . Supporting Member

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    8 cylinder
    I did hedman black maxx truck headers with 2.5” ball and socket flange, 2.5” pipe into 2.5” h-pipe, with borla pro xs mufflers.

    The h-pipe has a clamp fitting at the very top so I can remove the exhaust if need be. In the pictures, the crossover pipe looks closer to the cab than it actually is. It’s about 8” from the fuel filter you see on the crossmember.

    My spare tire doesn’t fit the spare well anyway, so I utilized the area for exhaust routing. Plenty of clearance this way from moving parts, and brake/fuel lines.

    082ACA78-B0F8-420B-B7F1-AEB4E08F154B.jpeg 1CC82374-2043-4E24-BEF8-161C6EC50533.jpeg 1FF6A9D8-1852-4E59-84C4-88D953E77366.jpeg

    A buddy said the borla may be louder than I wanted after I’d purchased them. However, they are pretty mild with normal throttle inputs. I think the h pipe quiets it down quite a bit.
     
  13. Arkansas_V8

    Arkansas_V8 Proud Redneck

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    Engine Size:
    5.7
    T
    That looks great! I love Hedman, mine are just the plain ones for a 4x4, only headers I will buy. Ball and Socket are the only way to go.
     
  14. 78C10BigTen

    78C10BigTen Full Access Member

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    First Name:
    ted
    Truck Year:
    1978
    Truck Model:
    C10 BIG TEN
    Engine Size:
    350
    Im running 3" generic long tubes, true duals with no cats straight to flowmaster super 44s in 3" and then a 90 bend turned down at a 45 angle just before the rear.

    20190131_152629.jpg
     
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  15. 75gmck25

    75gmck25 Full Access Member

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    First Name:
    Bruce
    Truck Year:
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    Truck Model:
    K25
    Engine Size:
    5.7
    If you use 2 1/4" pipe there are several manufacturers that sell direct bolt on systems. Just look through what they sell on Summit and Jegs, and then add on the cost of an H pipe and mufflers. If you move up to 2 1/2" or 3", its usually going to be a custom installation, or way more expensive for an off the shelf setup (I think there is only one company that sells a complete bolt-on 2 1/2" exhaust system for the square body).

    If you are on a budget I would just use a standard aftermarket 2 1/4" system and then put my money into good quality low restriction mufflers.

    Bruce
     
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