390 6-V High Performance Engine; Exhaust System Description; Inlet Pipe, Inlet Extension; Pipe, Muffler And Outlet Pipe Replacement - Ford 1963 Thunderbird Shop Manual

GROUP 1
390
6-V HIGH
PERFORMANCE
ENGINE (Part
1-1)
The warranty
plate
identification
symbol
for
the
engine
is "M". This
engine
is
the
same as the
390 4-V
engine
except
for
specifications
(Group 13)
and
the
following
dif
ferences:
1. A
cast aluminum
intake
mani
fold
replaces the
cast
iron intake
manifold used
on
the
390 4-V
engine.
2. The
coolant-heated carburetor
spacer
is
eliminated.
3. The
exhaust gas
control valve
is
mounted with
the counterweight
on
the
outboard side of
the
engine.
EXHAUST SYSTEM (Part
1-2)
DESCRIPTION
A
single exhaust system
is
stand
ard equipment on all
1963
Thunder-
birds. A dual
exhaust system
is
available as optional equipment on
all models.
The dual
exhaust system
(Fig. 3 A)
consists of: a
one-piece muffler
inlet
pipe with separate
front
section
inlet
pipes
that are
joined together by
a
welded cross-over pipe;
separate
right and
left inlet
extension pipes;
right and
left
mufflers
that
contain
integral
muffler outlet pipes;
retain
ing
clamps,
brackets,
nuts and
bolts;
two
exhaust manifolds
to
inlet
pipe
gaskets.
FIG. 3A-Dual Exhaust System
The
single
exhaust system
(Fig.
3B) consists of: a one-piece muffler
inlet
pipe
with
"Y"
type
inlet
pipes
that
are
joined
and welded
together;
a muffler
with an
integral
outlet pipe;
a
muffler
inlet
extension pipe;
re
taining clamps,
brackets,
bolts
and
nuts; two exhaust
manifolds
to
inlet
pipe
gaskets; a sealing
gasket,
located
at
the
flange
of
the
inlet
pipe and
the
inlet
extension
pipe rear
flange.
INLET PIPE,
INLET EXTENSION
PIPE,
MUFFLER AND OUTLET
PIPE REPLACEMENT
Muffler Inlet Pipe
-Dual
Ex
haust. The
muffler
inlet
pipe
is
serviced
in
one piece.
1. Loosen
the
muffler
inlet
pipe
to
inlet
extension pipe clamps and slide
the
clamps
forward
on
the
inlet
pipe.
Disconnect
the
inlet
pipe at
the
ex
haust
manifolds.
2. Disconnect
the
hanger bracket
clamp from
the
inlet
extension
pipe.
A1730-A
Remove
the
muffler rear
bracket
re
taining
bolts.
Disconnect
the
inlet
extension pipe
from
the
inlet
pipe
and remove
the
inlet
pipe.
3. Clean
the
mounting surfaces of
the
exhaust manifolds
and
the
inlet
pipes.
4. Install
the gaskets,
inlet
pipes,
and
the
retaining nuts.
Torque
the
nuts
to
specifications.
5. Position
the
front clamp
on
the
inlet
extension pipe.
Connect
the
inlet
pipe and
the
inlet
extension
pipe;