PerTronix Dougs Headers D450 - Manual (Page 4)

Part No. 0110-003005
Page 4
Rev 5 -3-27-13 DSL
IMPORTANT CHECK LIST
Be sure that all brake lines and fuel lines are clear of headers and/or connector pipes.
All spark plug wires, battery cables, or other electrical components should be clear of
headers and/or connector pipes.
Double-check the tightness of all bolts including brackets and accessories.
START THE ENGINE
Start the engine and allow it to warm up to operating temperature. Check for any unusual
noises or exhaust leaks. If everything is OK, stop the engine and tighten all bolts while the
engine is still warm.
NOTE: Check the bolts periodically to make sure they have not loosened. Re-tighten after the
first 500 miles and then again at 1000 miles.
PARTS LIST
Qty Description
1 Left Side Header
1 Right Side Header
2 Header Gaskets
2 2 ½” Reducers
2 2 ½”, 3 Bolt Collector Gaskets
2
1 5/8”, 2 Bolt Gaskets
16 5/16”-18 X 1” Header Bolt
16 5/16” Lock-Washers
4 5/16”-18 Hex Nuts
6
3/8”-16 X 1 ¼” Hex Head Cap Screws
6 3/8”-16 Hex Nuts
6 3/8” Lock-Washers
SPECIAL I
NSTRUTIONS FOR CARS WITH 10.5” CLUTCH:
Most conversions to the larger 10.5” clutch and corresponding bellhousing use a 12.5” long throw out
bearing arm and pivot bracket from the later A Body cars. This arm will interfere with the installation of these
headers and will need to be changed. This requires removal of the transmission. In order to properly
position the fork for header clearance, Mopar Performance clutch fork #P4529452 or equivalent will need to
be used. Additionally a special Fork Pivot Bracket
, Bell Housing Ball Stud Bracket and “Torque Shaft” or “Z
Bar” is also needed. These are available from Brewer’s Performance ( www.brewersperformance.com ) or
Mancini Racing ( www.manciniracing.com ). These parts are necessary to keep the geometry correct on the
clutch fork.