Edelbrock 10220275 Installation Instructions
©2004 Edelbrock Corporation
Rev. 12/04
Catalog #2899
Brochure #63-0234
Edelbrock Vortec EGR Adapter Kit
Catalog #2899
INSTALLATION INSTRUCTIONS
PLEASEstudy these instructions carefully before installing your EGR Adapter kit. If you have any questions or problems, contact our Technical Hotline
at: 1-800-416-8628 , 7am - 5pm, Monday-Friday, Pacific Standard Time or e-mail us at edelbrock@edelbrock.com.
DESCRIPTION: This adapter kit is intended for the customer who already has a set of headers in his truck that he wishes to re-use with his new Vortec
engine.
WARNING!!!
Exhaust gas contains carbon monoxide, a deadly invisible gas. Correct any leaks before driving!
1. Attach GM EGR Supply Tube (#10220275) and GM Adapter Fitting (#12552329) to intake manifold
(See Fig. 1). Do not tighten at this time!
2. Attach supplied EGR Supply Fitting to the GM Adapter Fitting
(See Fig. 1). Do not tighten.
3. Using one of the Edelbrock bent tubes at a time, position the tubes agains the under side of the fitting and against the side of the header primary
tube. (Use the tube that allows the EGR-supply tube to be positioned in the vehicle so it has adequate clearance around other components). Bent
tubes can be trimmed as needed
(See Fig. 1).
4. Once you have selected the tube that fits your application best, remove the Edelbrock
fitting from the EGR-supply tube and weld the fitting to the selected bent tube.
5. Re-install the fitting with the welded on tube and position the tube opening against the
header primary tube, mark the primary tube, remove the header and drill a 1/2” diameter
hole where you have marked.
6. For best fit, re-install the header into position, re-install the fitting onto the EGR-supplied
tube and tack weld.
7. Remove the header and complete the weld.
8. Re-install header with new gaskets and hardware. Tighten the GM adapter fitting into the
welded on tube and fitting, and tighten the fittings on both ends of EGR-supply tube.
INSTALLATION INSTRUCTIONS
Edelbrock Corporation • 2700 California Street • Torrance, CA 90503
Toll-Free Tech Line: 1-800-416-8628
Tech E-Mail: edelbrock@edelbrock.com
KIT CONTENTS
Qty.
Description
1
Vortec EGR Supply Fitting (#24-9715)
1
.75” O.D. x 1.25” Long, Bent Tube (#79-9643)
1
.75” O.D. x 6” Long, Bent Tube (#79-9574)
PARTS REQUIRED
Qty.
Description
1
GM #10220275 EGR Supply Tube
1
GM #12552329 Adapter Fitting
Figure 1 - Installed Supply Tube
GM Adapter Fitting #12552329
Edelbrock Kit #2899
GM EGR Supply Tube #10220275