JBA 6690SJT User Manual
Corporate Ofce: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 • FAX 909.599.6424
Installation Instructions
and Warranty Information
Headers for 2005-2006 Ford GT
P/N 6690S
WARNING: The product accompanying this document is legal only for off-highway use (except in California or
states that have adopted California emission standards), racing use or for use on pre-emission-controlled motor
vehicles/motor vehicle engines (pre-1966 domestic vehicles certied to California standards, pre-1968 domestic
vehicles certied to federal standards and all pre-1968 foreign vehicles), per the manufacturer’s application guide.
Read all instructions carefully before attempting installation.
Rev. 06/11
PerTronix© thanks you for choosing JBA HEADERS, the best tting, highest quality
header on the market. In order to realize the full potential of our good t, 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 num-
ber will be stamped on the engine ange. 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 conguration 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 ange 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 at installation of the ange. The torque se-
quence from one ange to another will vary, but generally every bolt on a header should be rst
t snug, starting from the inside of the ange working out, alternating from top to bottom so that
the bolt connects the ange to the manifold to the point where they barely touch. Second, using
the same inside-out pattern, tighten each bolt until nished. This method will help prevent leak-
age and will give the user the best possible performance out of their pair of headers.
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