----- Original Message -----
Sent: Saturday, March 15, 2003 5:29
PM
Subject: [Chevelle-List] RE: Sandersons
Headers
Here's the story on the Sanderson QP1200 fit on a '71
Chevelle Malibu 350, 4 speed manual, with new motor
mounts.
Left
side:
3/16" between the bottom of the manifold and the
cross member. This may be slightly less when fitted with a silicone
gasket.
With
a custom bent pipe to connect from the collector to the exhaust (2.5" pipe),
it should clear the clutch linkage ok (2 bends).
Will
need to replace the oil dipstick (won't fit back in). I believe there are
flexible dipsticks for this application.
Right Side:
1/2"
between the bottom of the manifold and cross member
1"
between manifold and the starter
1/4"
between the manifold and the right front brake line, where it goes over the
cross member
Clear shot from the collector to the exhaust, two
bends.
I
can get at all plugs with a socket.
I
forgot my camera (the car is 35 miles from my house), otherwise I could have
provided some pictures. Nuts.
The
question is, is 3/16" enough clearance on the left side? Which way does
the motor torque when running (toward or away from the left
side)?
An
option to increase the clearance on the left side is to grind part of the
casting away in that area. I believe it is quite think in that spot. Of course
this would probably void the warranty, and wouldn't be good on coated headers.
Another option might be to add some washers on the motor mounts. Is this
safe?
Tom
I
received the QP1200s today.
The flange is 11/16" thick, machined flat. Should
be pretty tough to warp those.
The ports will fit a stock small block head (1.4"
square).
As
far as the quality goes, looks good EXCEPT
one of the ports was plugged with sand (from the
sand casting)! Couldn't even blow through it. Good thing I checked; would
have been a bear to debug on the engine.
I
called Sanderson and they will exchange the left side for me. The person
said she had only heard of this happening once before.
Nothing about this header selection seems to be
going smoothly. I'll check the fit on Saturday.
Tom Tomlinson
'71 Malibu 350
Will do. I expect them Thursday, fit them on Saturday, then I'll
report.
Tom
Tom, Please let us know how the QP1200's fit your 71
SB. I have a 72 Elky with a 350 that I would like to use QP1200's
on.
Dwight
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