PerTronix JBA Exhaust 6608S - Manual (Page 3)

finished. This method will help prevent leakage and will give the user the best possible
performance out of their pair of headers. Below is the proper torque sequence for your
particular set of headers:
NOTE: These headers are designed to clear factory power steering. You will need a new
bracket to lower the power assist ram mount on the frame. Use JBA bracket part no. 6656B
or equivalent.
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. Disconnect the battery cables from the battery.
Raise the front of the vehicle 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 spark plug wires by grasping and gently twisting the spark plug wire
boots. Do not pull on the wires! Brush or blow any debris, which may have collected
around the manifolds or spark plugs. This will help prevent foreign matter from
entering the combustion chamber when the manifolds are removed. Spray WD-40 or
some type of penetrating oil on all accessible fasteners and fittings before attempting
to remove them.
3. Typically the exhaust pipes in these early vehicles are corroded to the extent that
they are difficult to modify for use with headers. These instructions contemplate the
removal of old components and the installation of a new exhaust system by an
exhaust shop. These instructions cover only the installation of the headers. The
necessary exhaust system modifications should be left to an exhaust shop.