PerTronix JBA Exhaust 6685S - Manual (Page 3)

9. Remove the bolts that attach the steering shaft U Joints to the steering rack and the steering column, Remove
the shaft.
10. Remove the nuts attaching the header to the cylinder head. Some of these are very difficult to access. Re-
move the studs from the cylinder head and remove the factory header.
11. Slide the JBA Long Tube header into position. Slip the Gasket between the header and the block and install
the studs back into the cylinder head. Install the original nuts back onto the studs and tighten them evenly a little
at a time, if you tighten one or two completely you may not be able to get a wrench on the remaining ones to
tighten them. Take your time on with a turn or two on each one.
Note: To ensure a tight seal - use an alternating torque sequence to snug the header to the head working both
top and bottom bolts in evenly. Failure to do this will result in leaks.
12. Place the aluminum motor mount stand back in place, install and tight the three bolts to the block.
13. Lower the motor so that the motor mount stand contacts the rubber mount. Reinstall the nut on the motor
mount and tighten.
Passenger Side:
14. Remove the passenger side motor mount nut to allow the engine to be raised. Remove the three bolts from
the starter. Remove the wires from the starter and remove it from the car.
15. Remove the nut on the driver side motor mount to allow the engine to be raised.
16. Place the jack under the oil pan using a block of wood to distribute the load.
17. Lift the motor approximately 2-3”. Unbolt the aluminum motor mount stand from the block and remove the
aluminum stand.
18. Remove the nuts attaching the header to the cylinder head. Some of these are very difficult to access. Re-
move the studs from the cylinder head and remove the factory header.
19. Slide the JBA Long Tube header into position. Slip the Gasket between the header and the block and install
the studs back into the cylinder head. Install 2 of the original nuts back onto the studs loosely to hold the header.
20. Reinstall the starter motor.
21. Install the remaining nuts and tighten them evenly a little at a time as you did with the Drivers side.
22. Install the aluminum motor mount stand and tighten the bolts to the block. Lower the motor back onto the
rubber mount and tighten the nut.
23. Slip the steering shaft back into position and tighten the pinch bolts.
14. Install the 02 sensors into the headers using a dab of anti sieze. Ford Racing recommends using the upper
location for the most accurate readings, Some tuners like to use the collector location. Install the Plugs in which
ever location you do not use. If you need extensions JBA has those available
15. JBA offers Hi Flow X & H pipes to use with these headers (call your performance retailer or JBA direct for
more info) or you can use the supplied reducers to build your own exhaust system.
16. 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.
17. Periodically check and retighten the header bolts