Owners manual

PART # 69110, 69116 & 69820
INSTRUCTION SHEET
CHEVY 2 W/D - 4 W/D, P/U
& MOTOR HOME CHASSIS
396-502 C.I.D.
INSTALLATION INSTRUCTIONS:
SPECIAL NOTE: Installation of Headers on motor homes is simplified by removing front
wheels.
1.
2.
3.
4.
NOTE:
5.
6.
7.
8.
9.
Disconnect battery and remove all spark plugs (Number wires).
Disconnect shifting rod at transmission
Remove stock exhaust head pipes and stock exhaust manifolds.
Install Headers from bottom of engine. With gasket in place on each, start all he der bolts.
After all bolts are started, tighten down evenly.
On some models it will be necessary to loosen motor mount bolts and raise the engine
to install he der.
Connect shifting rod.
Install spark plugs, and replace spark plug wires.
Connect He ders to exhaust system.
Make sure all brake and fuel lines and electrical wiring have sufficient clearance.
Connect Battery.
10.
.
Start engine, test drive vehicle, allowing engine to gain normal operating temperature.
Check for leaks and new or unusual noises and after test drive, re-tighten all he der bolts.
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69110-instructionsheet-102504.cdr
12438 Putnam Street Whittier, CA 90602 tel [phone] fax [phone]
website: www.hedman.com email: [e-mail]
This is a custom designed exhaust header system, designed for this particular application (s). Do not bend, bang, cut,
dent, drill or heat any portion of this header! Any alteration other than those suggested in this instruction sheet will
void the Hedman Lifetime Guarantee!
To prevent leaks, install your headers using Hedman Hedders exhaust gaskets and a spray copper gasket sealant.ONLY
It is necessary to raise the vehicle at least 36 inches from the ground. A floor hoist is recommended, if not available, use
a hydraulic floor jack with jack stands. DO NOT USE A BUMPER JACK!
CAUTION!
BEFORE STARTING INSTALLATION:
Metal Hanger
Rubber Hanger
Reducer
Collector
Metal Hanger
Muffler
The use of thermal wraps will drastically shorten the life of your Headers, and will void the Hedman “Lifetime Guarantee”.
DO NOT WRAP YOUR NEW HEADERS!
SPECIAL INSTRUCTIONS!
After installing your headers it is very important that your exhaust system be suspended properly. As indicated in the
drawing below you must place hangers as close to the header collector as possible. Rubber hangers should be used to
allow the front of the system to flex with the engine torque. A hanger is needed before and after the muffler (s). When
your exhaust system is unbolted from the header collector, it should remain suspended all by itself. Your Headers Are
Not designed to support your exhaust system. Failure to follow these instructions will most likely result in cracks around
the area where your primary tubes and collector are welded together, and will nullify your "Lifetime Guarantee".
ENJOY YOUR HE DERS WHILE COMBININGA INCREASED FUEL ECONOMY WITH BETTER PERFORMANCE.
WARNING: Not applicable or intended for street or highway use. Legal only for racing vehicles which may never be used upon a public highway.