"CobraJet" <shedding@[EMAIL PROTECTED]
> wrote in message
news:050720071151066311%shedding@[EMAIL PROTECTED]
> In article <468d190e$0$24690$4c368faf@[EMAIL PROTECTED]
>, keng2
> <keng2@[EMAIL PROTECTED]
> wrote:
>
>> "CobraJet" <shedding@[EMAIL PROTECTED]
> wrote in message
>> news:030720071930240861%shedding@[EMAIL PROTECTED]
>> > In article <468ac63f$0$31226$4c368faf@[EMAIL PROTECTED]
>, keng2
>> > <keng2@[EMAIL PROTECTED]
> wrote:
>> >
>> >> "CobraJet" <shedding@[EMAIL PROTECTED]
> wrote in message
>> >> news:010720071107477176%shedding@[EMAIL PROTECTED]
>> >> > In article <4687e148$0$8951$4c368faf@[EMAIL PROTECTED]
>, keng2
>> >> > <keng2@[EMAIL PROTECTED]
> wrote:
>> >> >
>> >> >> I have a 67 390 Mustang with smog heads and I'm planning on
>> >> >> changing
>> >> >> them
>> >> >> and eliminating the smog pump etc which is not working
>> >> >> anyways...I'd
>> >> >> like
>> >> >> to
>> >> >> have the heads all ready to swap when I do the job.I've seen 61
>> >> >> large
>> >> >> ****t
>> >> >> heads and 68 heads advertised on ebay.What would be
>> >> >> recommended??Would
>> >> >> it
>> >> >> be
>> >> >> better to rework and plug the existing heads??
>> >> >> Thanks-KenG
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> > Is this engine stock? Are you trying to increase power? Which
>> >> > intake
>> >> > and exhaust do you have on it? The ****ts and chambers are not cast
>> >> > any
>> >> > differently just because the air injector holes are drilled. Thus,
>> >> > there really is no such thing as a "smog" head for an FE. If the
>> >> > heads
>> >> > are original to the car (C7AE-A), you'd be better off just putting
>> >> > plugs in the holes and doing whatever else they need.
>> >> >
>> >> > --
>> >> > CobraJet
>> >>
>> >> Thanks
>> >> The engine is all stock original (not GT) and I'm not looking for
more
>> >> hp..( it gets about 9 mi/gal now.) I think it makes good sense to
keep
>> >> the
>> >> numbers the same even if it takes some time to wait for a machine
shop
>> >> to
>> >> do
>> >> it's work.
>> >> KenG
>> >
>> > Well, it can't be "stock original" and not be a GT engine. What is
>> > the fifth digit of the VIN? A properly tuned 390 should be getting
>> > better than 9 mpg in a light car. Are any of the exhaust manifold
bolts
>> > at an angle to the ****t, or are they all up and down? How many bolts?
>> >
>> > --
>> > CobraJet
>> Hi
>> It's an "S" code vin and not a GTA or GT. It has a 4V Holley. The
exhaust
>> manifold has 2 holes(1 up, one down) per ****t, 8 holes each.
>> Ken
>>
>>
>
> The "S" is a 390 GT engine. It is the only 390 available in a '67
> Mustang. The exhaust manifolds are wrong for a shock tower car
> (Mustang, Fairlane). They use 14-bolt GT manifolds designed to
> facilitate spark plug access. The log manifolds you have now are from a
> Galaxie, T-Bird, or truck, and are probably right up against the
> towers.
>
> You have a non-original engine (or at least the heads), and possibly
> a non-S-code car that had a VIN swapped. There is a process we can go
> through to verify things. Ultimately, a Marti re****t is the key, but if
> the VIN is wrong for the car, it is no help. Tell me if you want me to
> help, but the pace needs to be picked up a little. Also, it would be
> good if you can upload pics somewhere.
>
> --
> CobraJet
\Hi and thanx for the enlightenment. I've been looking at so many manifold
and head pictures on ebay that I began to think that mine looked like them
?
This time I really looked and the manifolds are apparently GT or at least
not 2 bolt/****t vertically opposed as they really have horizontal opposed
bolts(the visable ones) but the heads have an upper bare unused threaded
"boss" probably for the non GT manifold.which makes it difficult to access
the plugs if they weren't already blocked by the smog tubes.Thanks for
saving me from buying the wrong heads on ebay!!
I paid a "professional" years ago to jack up the engine to change the
plugs
and remove blown manifold gaskets that didn't need to be installed in the
first place and found out months later that he didn't put a board under
the
pan and subsequently trashed it. I checked the vin on the fender and it's
7R01S--- and the door plate is the same and the the registration is the
same. The one on the fender has a very deep stamped "S" which could be
suspicious??? The cast engravings on the intake manifold are C6AE 425-6.
Where else should I look for #'s? Does that seem suspicious for a 67
vehicle?? I know that the engine was worked on as years ago(many) soon
after
purchase my son and I had to disassemble the engine to replace worn
misaligned cam bearings/cam causing low oil pressure.I would be glad to
send
you pictures but have to get my son over with his digital camera.What
pictures would U need??
KenG
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