couple other things... the V6 kit headers are very well mad with a beefy
flange at the head and they have a slightly raise ring around the port on the
head side, the interference fit as V6 Joe calls it works but these are iron
heads I would never try it on alloy heads would sure strip them out... and you
must be very careful to start them straight.. UMMV junk headers are just that
and if they are not flat at the flange well they will never seal for long...
________________________________
From: james ellis <hunber@bellsouth.net>
To:
Dave Munroe <dave@munroe.ca>; "tigers@autox.team.net" <tigers@autox.team.net>
Sent: Wednesday, August 21, 2013 12:14 PM
Subject: Re: [Tigers] Cobra
continuation
In the V6 Alpine world this is over come in a different way
than anyone would
ever guess... the V6 is a metric beast and we simply use SAE
header bolts that
are as close to the metric bolt as possible ... they almost
fit but not quite
and they never back out..
________________________________
From: Dave
Munroe <dave@munroe.ca>
To:
tigers@autox.team.net
Sent: Wednesday, August 21,
2013 11:40 AM
Subject: Re:
[Tigers] Cobra continuation
Hi Guys:
I'm just
back from a week of
realtively spirited "Touring" (about 1200 miles), and the
engine grew
progressively more noisy until it was clear the exhaust manifold
bolts were
loosening.
Once home in the garage I was able to get the engine
room stripped
down to see what was going on. On the drivers side, the
rear-most bolt had
left the car (of course, the most difficult to access!) and
the rest were very
loose on both sides of the engine.
My car's engine is a
331 stroker making
about 320 hp, and is fitted with period headers (identified
by this List as
from JC Whitney), and these header to cylinder head bolts have
had to be
tightened at least once every driving season.
I know on race cars
this is an
ongoing problem and that bolt locks are usually fitted to prevent
this fault.
But the headers I have leave little room for these mechanical
locks. Does
anyone else have this problem, and is there a reasonable solution
that doesn't
require engine removal to effect?
Perhaps a new set of headers?
One of the
many Loctite formulas that take high heat?
Help!
dave
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