Edelbrock 65252 Manual de usuario

Rev. 5/06 - DA/mc

Catalog #65252, #65253

Brochure #63-65252

Page 1 of 2

EDELBROCK HEADER

for 1998-1999 Pick-Up 5.0L, 5.7L V8 &

1998-1999 Suburban, & 1998-2000 Tahoe, Yukon, 5.7L

CPI with A.I.R. and E.G.R.

Catalog #65252, #65253

INSTALLATION INSTRUCTIONS

PLEASE study these instructions carefully before installing your Headers. If you have any questions, please call our

Technical Hotline at: 1-800-416-8628 from 7:00 am - 5:00 pm, 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.

SUGGESTED TOOLS FOR INSTALLATION: This vehicle has metric fasteners.

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

❑Combination set of open-end 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 (E.O. #) from the California Air Resources Board

(C.A.R.B.) making it legal for street use on pollution-controlled motor vehicles in all 50 states. To assist you with emissions

equipment certification, we have included a silver fan shroud decal to help testing personnel verify that this part is a legal

replacement part on the vehicle for which it is cataloged. The adhesive-backed decal should be affixed to your fan shroud

next to the existing emission and engine specification decal. Do not cover your original equipment specification decal with

the Edelbrock fan shroud decal.

WARNING: The use of "Thermal Wrap" or any aftermarket coating process will void the warranty on your

headers. Those products can cause excessive heat and moisture buildup resulting in corrosion and early

failure of the system.

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

DISASSEMBLY

1. Disconnect negative battery cable.

2. Raise vehicle and disconnect 02 sensors.

3. Unbolt stock exhaust pipes from manifolds.

Right Side

1. Remove air intake assembly.

2. Disconnect A.I.R. injection hose from exhaust

manifold check valve.

3. Disconnect spark plug wires from spark plugs.

4. Unbolt dip stick tube.

5. Unbolt and remove manifold.

6. 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.

7. Remore A.I.R. check valve from stock manifold and

install on A.I.R. fitting of header.

8. Connect A.I.R. injection hose to check valve.

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.

Rev. 5/06 - DA/mc

Catalog #65252, #65253

Brochure #63-65252

Page 2 of 2

HARDWARE SUPPLIED

Catalog #65252, #65253

Qty.Description Qty.Description

❑1 #25-9253 Header left side (#65252) Ceramic ❑6 3/8” Flat washers

❑1 #25-9254 Header right side (65252) Ceramic ❑1 1/4 Hex capscrew

❑1 #25-9233 Header left side (#65253) Ti-Tech ❑6 3/8” Hex capscrews

❑1 #25-9234 Header right side (#65253) Ti-Tech ❑18 3/8” Lock washers

❑12 Hex header bolts ❑4 Hardened washers (for header flange slotted holes)

❑2 Port gaskets ❑6 3/8” Hex nuts

❑2 Donut gaskets ❑1 3/8” O.D. spacer

❑3 Wire ties

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

Tech Line: (800) 416-8628

Office: (310) 781-2222

E-Mail: [email protected]

9. Re-install spark plug wires.

10. Re-fasten dip stick tube using spacer and bolt

supplied in kit (if needed).

11. Re-install air intake assembly.

12. With wire ties, route any hoses, wires or lines away

from headers as necessary.

Left Side

1. Disconnect spark plug wires from spark plugs.

2. Disconnect A.I.R. injection hose from exhaust

manifold check valve.

3. Disconnect E.G.R. tube from rear of manifold.

(Stock E.G.R. adapter fitting will be re-used.)

4. Disconnect temperature sensor wire.

5. Unbolt and remove manifold from top side.

6. Install flange gasket and one 3/8"-16 x 1" bolt, lock

washer, and flat washer at rearmost bolt hole (leave

bolt loose enough to accept Header).

NOTE: Thick washers are to be used on slotted

holes of port flange.

7. Install left side Header from top side.

8. Install all bolts and washers on left side (do not

tighten at this time).

9. Re-install E.G.R. tube to header using stock

adapter.

10. Align all parts and tighten left side flange bolts at

this time.

11. Remove A.I.R. check valve from manifold and install

on A.I.R. fitting of header.

12. Connect A.I.R. injection hose to check valve.

13. Re-install spark plugs wires.

14. Re-install temperature sensor wire to temperature

sensor.

ASSEMBLY OF EXHAUST PIPE

1. Using supplied hardware and new donut gaskets

on both sides, re-attach the factory extension pipes

to the headers, and tighten bolts evenly to ensure a

tight seal.

2. Re-connect O2 sensors. Route O2 sensor wire

from loom to O2 sensors away from exhaust

components.

FINAL INSPECTION

1. Check all lines (hydraulic, vacuum, air conditioning

and fuel) to ensure there is adequate clearance to

headers. Use wire ties as needed.

2. Re-connect battery.

3. At this point, it is a good idea to look everything

over and make sure that nothing was missed in

assembly.

4. Start vehicle and bring up to normal operating

temperature. Check for possible leaks.

5. Turn engine off and let cool. Tighten all bolts again.

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