PerTronix 1815S-1 User Manual

Corporate Ofce: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone [phone] • FAX [phone]

Installation Instructions

and Warranty Information

Chevrolet Small Block Shorty Style Headers

Part # 1815S-1

Read all instructions carefully before attempting installation.

Rev.1 04-12 DSL

PerTronix© thanks you for choosing JBA 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.

JBA uses sealing beads on all its headers. We have found that when installed correctly, the
raised bead around each port increases the pressure exerted on the gasket directly adjacent to
the port and effectively prevents leaking gaskets. It is normal for the flange to be raised off the
cylinder head the thickness of the sealing bead. It is important when installing the header, to in­stall all bolts loosely, then tighten evenly to ensure the flat installation of the flange. The torque
sequence from one flange to another will vary, but generally every bolt on a header should be
first fit snug, starting from the inside of the flange working out, alternating from top to bottom
so that the bolt connects the flange to the manifold to the point where they barely touch. Sec­ond, using the same inside-out pattern, tighten each bolt until finished. This method will help
prevent leakage and will give the user the best possible performance out of their pair of headers.

1. Place vehicle in a location where the floor is solid and flat, with adequate lighting. Do not attempt to work
on a hot engine. Heat causes metal to expand and makes removal of fasteners difficult at best. Raise the front
of the vehicle and remove the front tires to obtain adequate access to the bottom exhaust manifold flanges. Use
large-base jack stands to support the vehicle. Do not rely on the jack! Block the tires to prevent the vehicle from
rolling off the jack stands.

2. Disconnect the negative battery cable from the battery. Apply penetrating oil on all accessible fasteners and
fittings before attempting to remove them.

3. Disconnect the spark plug wires by grasping and gently twisting the spark plug wire boots. Do not pull on the
wires! Remove the spark plugs.

4. Disconnect the head pipes from the exhaust manifolds and remove the stock exhaust manifolds.

5. If the car has an Air Injection pump this will have to be removed as these headers will not work with it.

6. Typically the exhaust pipes in early vehicles are long gone. These instructions contemplate the removal of

old components and the installation of a new exhaust system by a competent exhaust shop. These instructions
cover only the installation of the Shorty headers. The necessary exhaust system modifications should be left to a
competent exhaust shop.

7. Unbolt the stock exhaust manifolds and remove from the car.

8. Remove the gaskets and any gasket material or any carbon deposits that remain on the head surface. The use
of a gasket removal agent or scraper will ease the removal of any gasket material. Use care not to get debris into
ports or spark plug holes.

9. Bolt the header to the head using the supplied gaskets, bolts and lock washers. Torque to factory specifica­tions. NOTE: It is recommended that you use anti-seize on threads when installing on aluminum heads.

10. Reinstall the spark plug and wires taking care not to let any wires rest against the header tubes.

11. The headers come with two three-bolt flanges for use when mating the exhaust system to the new JBA
Headers. Bolts are also included. Note: It is recommended that a small amount of Sensor Safe High Temp
Silicone Sealant be used on the ball flange.

12. After the exhaust modifications have been made to adapt the headers to your exhaust system, recheck every­thing! Make sure all bolts are tight.

13. Check to make sure that all the wiring, fuel lines, transmission cooler lines, brake lines, hoses, etc. are
clear of the headers or any exhaust components and reroute or relocate those components as necessary.
Reinstall the battery cable.

14. Start the engine and let it warm up. Check for leaks. Shut engine off and let it cool down. Check to make
sure all fasteners are tight.

15. All Tubular Headers require maintenance including periodically check and retighten the header bolts.

Parts List:

(1) Driver’s Side Header Assembly
(1) Passenger’s Side Header Assembly

(12) 3/8-16 X 1” Header Bolts
(12) 3/8” Lock washers

(2) Header gaskets

(6) 3/8” Collector Bolts
(6) 3/8” Nuts.

(2) 3-bolt flanges.

LIMITED ONE YEAR WARRANTY

All JBA HEADERS and exhaust products are guaranteed, to the original purchas­er, to be free of defects in materials and workmanship for one year. This warranty
covers the replacement or repair of the product only and does not cover the cost
of removal and installation, customer applied aftermarket coatings or any discolor-

ation or corrosion of nished surfaces.

Damage or product failure resulting from collision, improper installation, off-road
use, road hazards, the use of exhaust insulating wrap or like products or rust oc­curring after installation, is not covered by the warranty. The warranty extends only
to the original purchaser.

Should a part become defective it should be returned to the original selling retailer
and must be accompanied with the sales receipt. If there is no retailer in your area,
call the factory for a return authorization and return your part prepaid to the factory
for inspection. PerTronix reserves the rights to replace or repair the alleged defec­tive part and return the part freight collect.