JBA 1674S, 1674S-1, 1674S-2 Installation Instructions Manual

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

Installation Instructions

and Warranty Information

JBA Headers for 1997-2007 Ford Ranger,

Explorer, and Sport Trac with 4.0L SOHC V-6

Part# 1674S (Passenger Side EGR)

Part# 1674S-1 (Driver Side EGR)

Part# 1674S-2

For 1997-2006 Vehicles:

The product accompanying this document has been granted a California Air Resources Board (CARB)
exemption, an “E.O.” number, or is a direct or consolidated replacement part. It is 50-state legal, per the
manufacturer’s application guide.
These headers retain all O.E.M. emissions equipment and are covered under the C.A.R.B. E.O. #D-216-29

Included in this kit you will nd a label that is required to aid in passing the California smog check program.

For 2007 Vehicles:

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 certied to California standards, pre-1968
domestic vehicles certied 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 number 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 conguration 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 sequence 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 leakage and will give the user
the best possible performance out of their pair of headers.

1. Place vehicle in a location where the oor is solid and at, with adequate lighting. Do not attempt to work
on a hot engine. Heat causes metal to expand and makes removal of fasteners difcult at best. Disconnect the
battery cables from the battery. Raise the front of the vehicle to obtain adequate access to the bottom exhaust
manifold anges. 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. Spray WD-40 or some type of penetrating oil on all accessible fasteners and ttings before attempting to
remove them.

3. From underneath the vehicle, loosen the bolts connecting the exhaust system to the exhaust manifolds. Pry
the exhaust system back about 1/2” to gain workspace.