Edelbrock 65000 - Manual

©2003 Edelbrock Corporation
Catalog 6500, 65000, & 65002

Page 1 of 2

Rev. 10/03

Edelbrock Header

For 1999-2004 GM, 1500/2500 Series Pick Up,

Suburban, Tahoe, Yukon 4.8L/5.3L/6.0L V8 Auto,

2 & 4 WD, Dual Catalytic without A.I.R. with EGR

Catalog #6500, #65000 & #65002

INSTALLATION INSTRUCTIONS

Please study these instructions carefully before installing your new Header. If you have any questions or problems, please contact
our

Technical Hotline at : 1-800-416-8628

from 7 am - 5pm, Monday-Friday, Pacific Standard Time or e-mail us at

[email protected].

Please fill out and mail your warranty card.

HEADERS:

These components are designed to improve the exhaust efficiency of the GM C.P.I. (Central Port Injection) V8 engine.

This

system does not require welding for installation

and retains all O.E.M. emissions equipment. These Edelbrock headers are

street legal in all 50 states.

Suggested Tools Needed for Installation.

This vehicle has metric fasteners:

❑

3/8" ratchet socket set with extensions and universal 13mm and 15mm swivel sockets

❑

Set of combination wrenches

❑

Jackstands, screwdrivers, pliers, crescent wrench, etc.

❑

Liquid penetrant, (GM #1052627) anti-seize compound (GM #5613695)

SPECIAL NOTICE:

This Edelbrock part has received an Executive Order number (E.O.#) from the California Air Resources Board

(C.A.R.B.) making it legal for street use in all 50 states. To assist you with emission equipment certification, we have included a silver
fan shroud decal to help testing personnel verify the this part is a legal replacement on the vehicle for which it is cataloged. The
adhesive-backed decal should be affixed next to the existing emission and engine specifications decal. Do not cover any part of your

original emission decal.

WARNING:

The use of "Thermal Wrap" or any aftermarket coating process

will void the warranty

on your Edelbrock Headers.

Those products will cause excessive heat and moisture buildup resulting in corrosion and failure of the header.

NOTE: High temperature spark plug wires and boots are recommended to withstand heat from Headers.

INSTALLATION INSTRUCTIONS

DISASSEMBLY

1. Disconnect negative battery cable.
2. Unbolt exhaust pipes from manifolds.

Right Side

1. Disconnect and remove spark plug wires.
2. Disconnect E.G.R. flange.
3. Unbolt dip stick tube.

4. Unbolt and remove manifold.
5. Install flange gasket and header from top. Install header

bolts, lock washers, and thick flat washers supplied,
ensure proper alignment and tighten bolts.

Note:

Thick washers are to be used on slotted holes of

port flange.

6. Install E.G.R. flange using supplied gasket.

7. Re-install spark plug wires.
8. Re-fasten dip stick tube.

Left Side

1. Disconnect and remove spark plug wires.
2. Unbolt and remove manifold.

3. Install flange gasket and header from top. Install header

bolts, lock washers, and thick flat washers supplied,

ensure proper alignment and tighten bolts.

Note:

Thick washers are to be used on slotted holes of

port flange.

4. Re-install spark plug wires.

Note:

Due to production tolerances, it may be

necessary to bend the motor mount heat shield for
better clearance.

ASSEMBLY OF EXHAUST PIPE

Note:

The stock donut on 4.8L & 5.3L gasket on right exhaust

manifold will be re-used with headers.