Catalog #66062
©2007 Edelbrock Corporation Page 2 of 3
Brochure #63-66062
Rev. 2/07 - DA/mc
Disassembly
1. Disconnect negative battery cable.
2. Remove side exhaust covers. Note: Have someone
assist you to prevent damage to side covers or body.
3. Remove two O2 sensors from stock exhaust.
4. Remove rubber mounts and bracket holding stock
exhaust system at front of side pipes. They will not
be re-installed.
5. Remove bolts holding the exhaust pipe to exhaust
manifold.
6. Remove starter.
7. Number spark plug wires and remove from spark
plugs. Lay the wires over the rear of the engine to
prevent damage to wires.
8. Remove plastic spark plug wire separators from
valve cover area.
9. Remove top of heater air box (right side).
10. Unplug wire from temperature sending unit on left
cylinder head.
11. Remove the retaining nuts securing the heat shields
to exhaust manifolds. Note: The right side will come
off easily. The left side will only come off after all
manifold retaining bolts have been removed and the
manifold is completely loose. You may need to
remove the front bolt that holds the water pipe to
allow you to remove the heat shield and manifold.
12. Remove stock exhaust manifolds.
13. Clean gasket surfaces on cylinder heads.
Note: Be careful not to damage soft aluminum.
14. Cut stock exhaust at inlet of catalytic converter.
Assembly - Left Side
1. Install upper half of header from top along with new
gasket, bolts and washers supplied.
2. The thick hardened flat washers will be used on the
three slotted holes on each header flange.
3. Start all ten bolts but leave bolts loose at this time.
4. Install lower half of header from under car. Place
outlet end over frame rail and rotate into place.
Install gasket and 3/8" Allen head bolts and self-
locking nuts supplied.
5. Tighten cylinder head flange bolts evenly.
6. Tighten connector flange bolts evenly. Note: It is
very important that these bolts be tightened evenly.
Assembly - Right Side
1. The right side installs basically the same as the left
side.
Note: Remember all flange bolts must be tightened
evenly!
Flex Coupler Installation
1. Install flex coupler and elbow assembly using band
clamp onto outlet end of header. NOTE: The catalytic
converter must remain in stock location. Therefore,
the new turnout elbows will need to be shortened to
fit onto the inlet of your catalytic converters.
2. Once you have trimmed the outlet end of the turnout
elbows tack weld the catalytic converter inlet to
elbow.
3. Recheck all alignment and critical points, such as
outlet positioning, side pipe clearance to outer
covers catalytic converter location, etc.
4. If everything is correct, remove side pipe and flex
coupler/elbow assembly and weld together.
5. Reinstall onto car.
6. Repeat for other side.
7. Reinstall two O2 sensors and tie wrap sensor wires
away from hot parts with the tie wraps supplied.
NOTE: It may be necessary to re-route or re-position
the wires for the O2 sensors to make it easier to plug
in the O2 sensors.
Final Check
1. After all bolts have been properly installed and
torqued, reconnect battery cable, sparkplug wires,
separators,etc.
2. Start car and check for exhaust leaks. Do not drive
at this time.
3. After letting engine fully warm up, shut off and let
engine fully cool down.
4. Re-tighten all bolts and nuts on TES (Tubular Exhaust
System) headers.
INSTALLATION INSTRUCTIONS
