Which Headers??? 66 5.0 AOD

Scott66

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Jan 4, 2010
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Any help or direction appreciated. Converting an I6 to V8. I am using a stock 1995 Mustang GT 5.0 HO and hooking to an AOD. Anyone know for sure what headers will work or am I better off to use stock cast Iron manifolds? Thanks again.
 
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You could use the HiPo manifolds.

I recommend these stainless JBA headers 1650S. I have these 1650SJS. They are mid length and fit great and even have 02 bungs for the sensors for EFI. There are a couple options. I have the stainless ceramic coated ones. You can also get them in just stainless or a titanium finish.

JBA Performance Exhaust

I would also recommend using the RMP adjustable motor mounts. It makes things much easier.
 
The hedman long tubes will not fit out of the box. not to worry, not many long tubes under $500 will fit. i ended up cutting it near the collector and rotating it to clear the bigger trans. i also had to make a notch to clear the shifter linkage. it scrapes on the big speedbumps, but its too late to return em.

Hedman Hedders 88308 - Hedman Elite Hedders - Overview - SummitRacing.com

only the drivers side needs modification. the passenger side is fine as-is
i need to also mention, that i had an older set of black-paint hedman longtubes that fit the driver side fine, but the passenger only works for C4s. if you get into a bind and want my driver side header, it will work.

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if you want the easy route... just give up a few horsepower and get shortys or mid lengths.
i saw doug thorely mid-length headers at a swapmeet that looked like theyd work
 

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The hedman long tubes will not fit out of the box. not to worry, not many long tubes under $500 will fit. i ended up cutting it near the collector and rotating it to clear the bigger trans. i also had to make a notch to clear the shifter linkage. it scrapes on the big speedbumps, but its too late to return em.

Hedman Hedders 88308 - Hedman Elite Hedders - Overview - SummitRacing.com

only the drivers side needs modification. the passenger side is fine as-is
i need to also mention, that i had an older set of black-paint hedman longtubes that fit the driver side fine, but the passenger only works for C4s. if you get into a bind and want my driver side header, it will work.

attachment.php


if you want the easy route... just give up a few horsepower and get shortys or mid lengths.
i saw doug thorely mid-length headers at a swapmeet that looked like theyd work

How much work was that? I really dont want to cut up these headers as I just had new ones sent out due to minor shipping damage.
 
Tim, where those bought specific to the 65 mustang or are those just 5.0 headers? When you drop down from the generic 5.0's to the 65/66 the price goes way up. thanks
 
Scott66:

Tim, where those bought specific to the 65 mustang or are those just 5.0 headers? When you drop down from the generic 5.0's to the 65/66 the price goes way up. thanks

Specific for the Mustang, they fit '65 - '68 with SBF
Hedman Hedders 88406
Summit Racing $300
I paid $280 in 2007
Was the price on the generic 5.0's for ceramic coating? I know that makes a big difference in price. Besides as mentioned, I don't think the Fox body 5.0 headers will work.
 
I just pulled on the headers while installed with a 2x4 in the collector and they moved enough to clear the pan with no probs. Its a lot easier to do when you have inexpensive headers because of the thin walls. Kinda redneck but it worked for me perfectly. Hope this helps.