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©2003 Edelbrock Corporation Rev. 4/03
©2003 Edelbrock Corporation Rev. 4/03
EDELBROCK VICTOR SERIES DRAG RACE HEADERS
for 1998-2002 LS1 Camaro and Firebird
Catalog #6570
KIT CONTENTS
®
Qty. Part No. Description
1 25-9217 Left Side Header
1 25-9218 Right Side Header
2 25-9222 Slip-on Merge Collector
2 37-6570 O2 Sensor Wire Extensions
2 52-9710 O2 Sensor Bungs
1 54-0408 EGR Flange Gaskets
2 54-6600 Header Port Flange Gaskets
2 54-6622 Air Flange Gaskets
4 60-8541 5/16”-18 x 1-1/2” Grade 8 Hex Bolt (Collector)
Note: Your Edelbrock Victor Series Race Headers include evacuation tubes, O2 sensor bungs, collector mounting tabs , E.G.R., and
A.I.R. sub-assemblies, to be installed, if needed or required. This allows you to custom-tailor the header for a better fit and finish for
your particular needs and class requirements.
1. Evacuation tubes (if used) can be positioned in the collector where desired for best fit and routing of the hoses (route hoses
away from hot engine components). See diagram for recommended positioning of evacuation tube.
2. Collector mounting tabs should be installed after primary tube tuning has been completed (if applicable).
3. O2 sensor bungs (if used) can be positioned on the header collector where the sensor wires can be routed away from hot
engine components (O2 sensor wire extensions are provided). Drill 3/4” hole and weld bung to collector.
4. EGR sub-assembly provisions (if needed) can be installed by attaching the vehicles EGR flange to the sub-assembly provided
(Two sub-assemblies have been provided. Choose the one that fits your car best). Trim the provided sub-assembly tube.
Mark and drill the header primary tube with a 1/2” drill. Weld sub-assembly to header tube.
5. A.I.R. sub-assemblies provisions (if needed) can be installed by attaching the vehicle’s A.I.R. flange to the provided A.I.R. sub-
assembly. Trim the tubes, mark and drill 1/2” diameter holes and weld to primary tube.
Special Components that may be needed, if applicable:
Note: Oxygen Sensor Simulators may be purchased from the following: SLP PT #31036; Phone (732) 349-2109;
Mid America Designs, Inc. PT #609132, Phone (217) 347-5591: RPM Outlet, Phone (713) 858-8095.
Qty. Part No. Description
12 68-0350 8mm x 1.25 x 30mm Hex Bolts (Header Flange)
4 68-6550 5/16” - 18 x 1-1/2” Grade 8 Hex Bolt (Collector)
2 79-9749 Evacuation Tubes
8 79-9750 Collector Mounting Tabs
1 79-9916 EGR Provision (Sub-assembly)
1 79-9934 EGR Provision (Sub-assembly)
2 79-9922 A.I.R. Provision (Sub-assembly)
8 82-3600 5/16” AN Washers (Collector)
12 82-4620 5/16” Split Lock Washers (Header Flange)
Edelbrock Corporation, 2700 California St., Torrance, CA 90503
Tech Line: 1-800-416-8628; Office: 310-781-2222
As the exhaust flow passes by
the tube, it creates a low
pressure area on the backside,
which translate into vacuum.
EXHAUST FLOW