Tom
Hard to say on the Shelby prototype; I believe the engine was
changed from the 260 to a 289. The same exhaust manifolds could have be
used on the 289 but the current owner would need to look to see what is
there now.
I would guess that the C3DE manifolds could be used on both sides if
it can clear the right side motor mount. One consideration you always need
to remember is the time frame of the Shelby Tiger, March 1963. I'm not sure
how many different style exhaust manifolds Ford produced at that time. The
one exhaust manifold has a casting date of 1965 so that manifold is out of
the question unless it can be traced back into 1963 which might possible if
the C3DE casting number was correct.
One of the specifications had to do with the new emission laws in
the works in California and the fact that the PCV system stopped the real
heavy build up of sludge in the engine. They also needed a heat riser on
the right side exhaust manifold for the choke. A large engine order like
this; money talks and parts get made to order. A new part would include a
heat riser and an exhaust out in the correct positions.
Ken Miles used a couple log style Ford exhaust manifolds turned
around so the exhaust pipes went forward then down.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Thomas Witt
Sent: Friday, May 06, 2011 11:52 AM
To: tigers@autox.team.net
Subject: Re: [Tigers] Exhaust manifolds
When George Boskoff spoke at the Mammoth United he said something to the
effect of, "I kept sending the kid to the dealer (Ford) until we found a
manifold (exhaust) that would fit." So, even before the Tiger went into
production there was something in the Ford parts bin that was functional.
Perhaps these are the manifolds Peter saw.
It is only a guess, but with the Tiger having a specific manifold Rootes
likely felt a need for an alteration (no matter how minor) to meet a
specification. It would be interesting to see the manifolds on the
Boskoff/Shelby prototype assuming they are still what George installed.
Tom
> While at the Portland Swap Meet, I saw a set of cast SB Ford exhaust
> manifolds. The R/H and L/H looked like mirror images and the R/H
> looked identical to a stock Tiger's. The fellow said he thought they
> were from a Comet. If these were available, why the different specific
> Tiger casting??
>
> D/S C3DE - 8(9?)431 - A 3H27
>
> P/S C3DE - 9431 - A 5A21
>
> They were quite rusty and a bit hard to read (yes, I had my glasses
> on!) so may have messed up on the 8's & 9's.
>
> Peter
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