JBA 1626SJT - Manual (Page 2)

PerTronix© thanks you for choosing JBA HEADERS, the best fitting, highest qual-
ity 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 locat-
ed 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 after-
market 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 ad-
jacent 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 install-
ing 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 work-
ing 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.