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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » I like the low profile AC system on the 69

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    3/30/2022 7:25 PM  #1

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,253

    I like the low profile AC system on the 69

    But my Cobra air cleaner just TOUCHES the hood when using a 3” filter element.
    Has anyone ever seen a 2-1/2” element?   The 2” just looks too short…

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/30/2022 8:42 PM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,974

    Re: I like the low profile AC system on the 69

    I have been using a 2” K&N on my 331 with 670 Holley since day one. I can’t say it is too small for any reason I can think of, even the 68 GT 500 dual quad has the same size listed.
    IIRC K&N has a 2 1/4”
    .

    Last edited by Rudi (3/30/2022 8:42 PM)

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    3/30/2022 10:42 PM  #3

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,253

    Re: I like the low profile AC system on the 69

    I have the 2” Cobra on my 66.. it works fine and is the tallest that will fit the engine. I just prefer the look of the taller one. I will look for a 2-1/4”. Thanks

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    3/31/2022 7:49 AM  #4

    Mach1Driver
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    Registered: 7/16/2021
    Posts: 126

    Re: I like the low profile AC system on the 69

    MS you could calculate the surface area of a round filter versus a 2" oval and compare. If there is less surface the flow will need speed up. It might be noticeable on a dyno, but I see your point, more is better.

     

    3/31/2022 8:22 AM  #5

    MS
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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,253

    Re: I like the low profile AC system on the 69

    Flow is not a factor here. I just like the LOOK of the taller filter. My 66 actually has one smaller than 2”.  I have to get the short filter so it will clear the hood. It still feeds the 427 stroker just fine.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
       •Thread Starter
     

    3/31/2022 9:18 AM  #6

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,640

    Re: I like the low profile AC system on the 69

    Review K&N's webpage, they offer a "Search by Dimensions" feature that you can see if they offer the size you're looking for. 

    https://www.knfilters.com/dimsearch
     

    Last edited by BobE (3/31/2022 9:48 AM)

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    3/31/2022 9:04 PM  #7

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    Re: I like the low profile AC system on the 69

    Possibly a drop base?    Get a blank standard  base from Tony Branda and a drop base from a standard 14 inch and blend them together and fabricate one. How much more clearance do you need? 

    Last edited by BILLY WALTON from GEORGIA (3/31/2022 9:39 PM)

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