Edelbrock 65063 User manual

Brochure #63-65063

Catalog #65063, #65073, #65083, #65123

Rev. 4/08 - AJ/mc Page 1 of 2

EDELBROCK RETRO-FIT HEADER SYSTEM

For GM Bodies: A ‘64-’67, ‘68-’72; F ‘70-’81; and X ‘75-’79

Catalog #65063, 65073, 65083, 65123

INSTALLATION INSTRUCTIONS

Please study these instructions carefully before installing your new Edelbrock Retro-Fit LS1 Header System. If you have any

questions, please contact our Technical Hotline at: 1-800-416-8628 , 7am - 5pm, Monday-Friday, Pacific Standard Time or e-mail

us at [email protected].

DESCRIPTION: These header systems are designed to improve the exhaust efficiency of either the Vortec style head equipped

Small Block Chevrolet engine or the LS series engine as it is used in the A, F, or X-body chassis. It is highly recommended to use

the Edelbrock Engine Mounting Adapter Plates # 6701 for the LS series engine headers #65063 or #65073. These headers are

designed to work with the corresponding Edelbrock Header-Back for the appropriate chassis style.

Suggested Tools for Installation:

❑SAE and metric sockets, ratchets, and wrenches ❑Floor jack and load rated jackstands

APPLICATIONS: HEADER COMPONENTS:

IMPORTANT NOTE:

Proper installation is the responsibility of the installer. Improper installation will void

warranty and may result in poor performance and engine or vehicle damage.

KIT CONTENTS (#65063 & #65073): KIT CONTENTS (#65083 & #65123):

Part #: Year Range: Body Style: Engine Family:

65063 1964 - 1967 ALS1

65073 1968 - 1972 ALS1

65073 1970 - 1981 FLS1

65073 1975 - 1979 XLS1

65083 1964 - 1972 AVortec

65123 1970 - 1981 FVortec

65123 1975 - 1979 XVortec

Part #: Quantity: Component #: Description

65063 1 25-9825 Left Header

65063 1 25-9826 Right Header

65073 1 25-9810 Left Header

65073 1 25-9811 Right Header

65083 1 25-9821 Left Header

65083 1 25-9822 Right Header

Quantity: Component #: Description:

254-8200 3” Donut Gaskets

254-6600 LS series Port Flange Gaskets

12 68-0350 8mm - 1.25 x 30mm Bolts

12 82-4620 8mm Lock Washers

12 82-8721 8mm Hardened Washers

468-8565 3/8” - 16 x 2-1/2” Hex Bolts

482-5240 3/8” Flat Washers

482-5590 3/8” Lock Washers

460-9185 3/8” - 16 Hex Nut

252-9710 O2Sensor Bungs

223-4113 Collector Flange

279-9027 Collector Ext. (Stub Tube)

Quantity: Component #: Description:

254-8200 3” Donut Gaskets

254-6590 Port Flange Gaskets

12 36-0716 3/8” - 16 x 1” Header Bolts

482-7231 3/8” Hardened Washers

468-8565 3/8” - 16 x 2-1/2” Hex Bolts

482-5240 3/8” Flat Washers

16 82-5590 3/8” Lock Washers

460-9185 3/8” - 16 Hex Nut

223-4113 Collector Flange

279-9027 Collector Ext. (Stub Tube)

Brochure #63-65063

Catalog #65063, #65073, #65083, #65123

Rev. 4/08 - AJ/mc Page 2 of 2

WARNING!!!

Exhaust gas contains carbon monoxide, a deadly invisible gas. Correct any leaks before driving!

Edelbrock Corporation, 2700 California St., Torrance, CA 90503

Tech Line: (800) 416-8628 Office: (310) 781-2222

E-Mail: [email protected]

1. Raise and support vehicle at least 16” off of the ground.

2. Remove any existing exhaust manifold and or pipes that will interfere with the installation of the headers.

3. On some vehicles, it may be necessary to remove the steering shaft. Mark its orientation to the connector at the steering box,

remove clamp bolt, and slide shaft off of the steering box input shaft.

4. Install the headers on to the engine using the supplied gaskets, bolts, and washers. Install all the header bolts in the header

before tightening them. Removal of the starter will make header installation easier in some applications.

5. If the steering shaft was removed, install the shaft on to the steering box making sure to align the marks made in step 3.

6. Install supplied donut on to the collector outlet of the header.

7. O2 sensor bungs are supplied in systems #65063 & #65073. They should be placed according to the recommendations of the

EFI system or AFR metering device you are using, but are not generally required for carbureted applications.

Note: Edelbrock Header-Back Exhaust Systems are designed to bolt directly to the collector of these headers.

INSTALLATION PROCEDURE

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