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
|
