Part No. 0110-003083 Page 1 of 4 Rev. 2 7-1-13 DSL
HEADER INSTALLATION INSTRUCTIONS
Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 * FAX 909.599.6424 * www.patriotexhaust.com
Part # D741
1965-75 Oldsmobile Cutlass/442
1971-75 Delta 88 / 1971-74 Vista Cruiser
400-455 Motors
PerTronix
©
thanks you for choosing
Doug’s Headers
, the best fitting, highest quality header on the market. In order to
realize the full potential of our good fit, please read and understand these instructions completely prior to starting work
Check to make sure you received the proper parts for your application. The header number will be stamped on the engine
flange. If you are unsure you have received the proper parts call before you start work.
Be sure to work safe! Whenever you work under the vehicle be sure that it is located on level, solid ground and is supported
by adequate safety stands! Remember: Hot asphalt will not support most jack stands!
Many factors affect the installation of headers, some of which are broken or aftermarket motor mounts, accidents that impact the
configuration of the frame, and/or the installation of different engines or aftermarket cylinder heads.
Attention Customers breaking in new engines: Due to the extreme heat generated during the break-in process, the
appearance of the ceramic coating may be altered in certain areas. The protection characteristics and thermal barrier properties
of the coating is never compromised. It is recommended that a cast iron manifold or old set of headers be used for this process.
Notice: The coating of these headers can be marred or scratched during installation. If the header needs to be returned and is
damaged, you will be charged for recoat.
NOTE: It is imperative that you have New motor Mounts of the proper type and in perfect
condition. Many worn and inferior quality mounts will position the motor in such a position that
the headers will hit the center crossmember.
DISASSEMBLY
1. Disconnect the negative battery cable from the battery.
2. If a car lift is not available, raise the vehicle 2 feet or higher and support with adequate
safety stands. Make sure the vehicle is on a flat solid surface and is stable.
3. Unbolt the head pipes form the manifolds and push the head pipes out of the way.
4. Remove clutch linkage on stick shift car or auto trans shift rod and key lock rod on
automatic cars.
5. Remove starter, starter brace, frame/fender brace, dipstick tube, oil filter and oil filter
adaptor, and vacuum canister for the heat riser.
6. Cars with the brake pressure valve and warning light switch mounted to the
inside of the driver’s side frame will need to be relocated to the top of the frame.
7. Remove the manifold bolts from each manifold and remove the manifolds from the car.
(2 pages)
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