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2/07/2025 7:41 PM  #1


1965-351w/ AOD headers

Ok, it didn’t work. I have the 351 in and did have a C6 with Heddman headers. Fit fine. I am swapping to an AOD and am finding the passengers side of the bell housing is biting hard into the header. I dont think I’ll be getting it in with these headers. Does anyone have any experience with this set up and have a header recommendation? Thank you ahead of time. FYI- I have searched some but am not finding much.


65 mustang coupe, 351W, C6-  2800 stall, B&M blower, 9inch- trac-loc 3.70 gears
 

2/07/2025 8:27 PM  #2


Re: 1965-351w/ AOD headers

Are your headers mild or stainless steel? On my mild steel Headman Hedders when I installed an aod, with the car on block cribbing I layed on my back and with my feet pushed the collector outward for clearance. I tried the same technique with stainless headers without luck.

Last edited by rpm (2/07/2025 8:28 PM)


Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
 

2/07/2025 10:39 PM  #3


Re: 1965-351w/ AOD headers

I did exact same thing with Hedmans to move them over a bit. Mine were ceramic coated stainless.

I now have JBA headers on my 66 with 427 (351w based) they fit great and I can get a socket on most of the bolts at the top.


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

2/07/2025 11:55 PM  #4


Re: 1965-351w/ AOD headers

In my 68, I have the 351W with JBA coated shorty headers. I also have a 4R70W. The headers fit fine with no interference anywhere. I did have to trim off a small (1/2") protrusion at the fwd end of the block on the driver's side to get that header installed, but it clears everywhere else.


68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
 

2/08/2025 6:56 AM  #5


Re: 1965-351w/ AOD headers

The headers I have are uncoated long tube headman’s. The other issue I see is that I can barely get a finger between the brake booster and one of the tubes as well. I’m concerned about cooking it, I do have it wrapped but that will only help so much. I’m thinking I need to switch to a shorty header to solve both problems.


65 mustang coupe, 351W, C6-  2800 stall, B&M blower, 9inch- trac-loc 3.70 gears
     Thread Starter
 

2/08/2025 7:51 AM  #6


Re: 1965-351w/ AOD headers

I had the hedman long tubes and hated them when I had to remove or install them, mostly on the driver side where the tube covers the flange bolts.  I replaced them with the JBA shorties and lived happily ever after. 


Founding Member of the Perpetually Bewildered Society
 

2/08/2025 11:19 AM  #7


Re: 1965-351w/ AOD headers

John Ha wrote:

I had the hedman long tubes and hated them when I had to remove or install them, mostly on the driver side where the tube covers the flange bolts.  I replaced them with the JBA shorties and lived happily ever after. 

Good info, do you have a part number?


65 mustang coupe, 351W, C6-  2800 stall, B&M blower, 9inch- trac-loc 3.70 gears
     Thread Starter
 

2/08/2025 11:34 AM  #8


Re: 1965-351w/ AOD headers

Brents65 wrote:

Good info, do you have a part number?

I have the 1653 model but if you have (or think you ever may have) a cable clutch you will want the 1655 model


Founding Member of the Perpetually Bewildered Society
 

Board footera


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