Hello Bob,
I too have a Falcon header and was until recently using a Cannon intake as
well. I had trouble with the fit also, even though mine is a wide port
(later) head. I did not have the same problem as you with tube interference.
I had to dent in the header on #3 with a ball peen hammer to get the nut on
the stud, but my major problem was the thickness of the Cannon flange
compared to the header's flange. The header had approximately a 1/8"
thinner flange which caused the "shared wobble compression washer" to bind
at the stud and not allow the header to seal against the head properly. (How
about that for making-up a name when I don't know the real one.) I found
this out upon removing the header and intake and replacing the gaskets.
Does your header take all 6 to one outlet and is it in one piece? Or is it
in two pieces taking 3 each to separate exhaust pipes? Mine is the latter
and I also had to shave off about 3/8 inch from the frame flange to get it
to clear below. I don't know if you're a believer in wrapping headers, but
if you are get on some gloves and wrap it BEFORE it is installed. Mine is
now quite and without that tin can sound and the compartment is noticeably
cooler.
Don Carter
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On Behalf
Of Robert M. Lang
Sent: Thursday, June 01, 2006 10:05 AM
To: fot@autox.team.net
Subject: [FOT] Re: TR6 Headers
Hi,
This is just a quick query to the group. It may apply only to TR6.
I have a TRF Falcon header that I bought quite some time ago. It looks like
a very nice piece. When I started getting the car ready this year, I figured
that I'd try to use this piece seeing that it is much nicer than the Monza
header that I've been using. It bolted up fine with the exception of having
to replace a couple of the studs with cap screws to clear the inside radius
of a couple of the bends... okay, all well and good.
The problem that I have is that the Cannon manifold for the webers
interesects with the tubes for the #1 and #6 exhaust ports (about 2.5 inches
out from the flange). I looked at relieving the intake casting, but the
material is too thin there, so it looks like I have to either relieve the
header (maybe heat with a torch and re-shape it a bit) or (heaven
forbid) re-position the tube...
If anyone with the Falcon header and the Cannon manifold can provide
insight/guidance, I'd appreciate it. Note: this is an early fed.spec head
(e.g. narrow port TR6), if that matters. Because of that, playing with the
intake manifold is a last resort (these parts appear to be scarce).
I really want to use this header if for no other reason that I have a $400
header sitting on my parts pile, but it looks like a nice piece and I'd like
to get it coated and all that.
regards,
rml
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