PerTronix D329 User Manual

Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone [phone] * FAX [phone] * www.dougsheaders.com

HEADER INSTALLATION INSTRUCTIONS

1962 – 67 Chevrolet Nova/Chevy II

265-400 Small Block, Fenderwell Exit

PART NUMBER: D329

PerTronix©

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.

thanks you for choosing

DOUG’S HEADERS

, the best fitting, highest quality header on the market. In order

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. Remove the Stock Exhaust system and exhaust manifolds from the engine

4. Remove spark plug wires and spark plugs.

5. Remove the alternator.

6. The fenderwells have to be modified for this header to work. There is an illustration on
the next page outlining our suggestion for this modification. Carefully cut the inner
fender as suggested using a Plasma cutter, Cut Off Wheel or Reciprocating saw taking
care not to cut through any wiring or plumbing. Check both side of the Fenderwell
before cutting.

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7. Remove the gaskets and any gasket material or any carbon deposits that remain on the

head surface. The use of a gasket removal agent will ease the removal of any gasket
material.

INSTALLATION

1. Passenger Side - Working from the top, slide the header through the opening in the
inner fender that you cut and line the header up with the cylinder head.

2. Place the gasket into position and start the bolts. After all the bolts are started and you
have verified that the header does not contact the inner Fenderwell, tighten the bolts
working from the center out.

3. Drivers Side – Installation is the same as the passenger side with the exception of the
forward most two bolts. If your alternator or generator mounted to the exhaust manifold,
use the supplied bracket #H7606 to mount your original alternator bracket. If you don’t
have the original bracket, order part #H7607. See illustration for installation.

4. Re install spark plugs and wires.

5. Bolt the reducers to the header collectors using the supplied gaskets and hardware.

6. Connect the negative battery cable.

IMPORTANT CHECK LIST

Be sure that all brake lines and fuel lines are clear of headers and/or connector pipes.
All spark plug wires, battery cables, or other electrical components should be clear of

headers and/or connector pipes.

If dipstick tube was removed, make sure it is installed properly and that the dipstick has

been replaced.

Double-check the tightness of all bolts including brackets and accessories.

STARTING THE ENGINE

Start the engine and allow it to warm up to operating temperature. Check for any unusual
noises or exhaust leaks. If every thing is OK, stop the engine and tighten all bolts while
the engine is still warm.
NOTE: Check the bolts periodically to make sure they have not loosened. Re-tighten
after the first 500 miles and then again at 1000 miles.

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