PerTronix Dougs Headers D304 - Manual

Part No. 0110-003119
Page 1
10-31-2013 DSL
HEADER INSTALLATION INSTRUCTIONS
D304
1965-89 Chevrolet Passenger Car & Wagon
1967-81 Camaro, 1964-87 Chevelle, El Camino
1970-87 Monte Carlo, 1968-79 Nova
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.
Most installations require some welding. If you are uncomfortable with welding operations, we recommend that you
contact a professional exhaust system specialist to install your new headers.
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.
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 it with adequate
safety stands. Make sure the vehicle is on a flat solid surface and is stable.
3. Apply penetrating oil to all nuts and bolts to be removed.
4. Remove and mark all spark plug wires and then remove all spark plugs.
NOTE: Grasp spark plug boot, not the wire, and use a twisting motion while pulling the
wire from the plug.
5. Disconnect the head pipes from the exhaust manifolds and remove the manifolds.
6. Remove the alternator, dipstick, dipstick tube, and clutch linkage. Remove the starter if
needed. On late model cars, remove the power steering bracket.
Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 * FAX 909.599.6424 * www.dougsheaders.com