Edelbrock 3638 Installation Instructions

©2005 Edelbrock Corporation

Brochure #63-0418

Catalog #3638

Rev. 6/05 - RS/mc

ALUMINUM FUEL RAIL KIT

For Use with Victor Jr. LS1 EFI Intake Manifold #29085

Catalog #3638

INSTALLATION INSTRUCTIONS

PLEASE study these instructions carefully before beginning this installation.  Most installations can be accomplished with

common tools and procedures.  However, you should be familiar with and comfortable working on your vehicle.  If you do

not feel comfortable performing this installation, it is recommended to have the installation completed by a mechanic.  If

you have any questions, please call our 

Technical Hotline at: 1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard

Time, Monday through Friday or e-mail us at 

edelbrock@edelbrock.com.

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DESCRIPTION: Aluminum Fuel Rail Kit #3638 is designed to be used with the Edelbrock Victor Jr. LS1 EFI Intake

Manifold #29085.  It is designed to be used with compact injectors with a 1.50” O-ring to O-ring length, such as our

high impedance Edelbrock Pico injectors, or standard height injectors with a 2.50” o-ring to o-ring spacing such as our

Edelbrock Mototron injectors..  See our catalog under “EFI Replacement Parts” for details.  This fuel rail kit may also

be purchased with the Edelbrock Victor Jr. LS1 EFI Intake manifold (#29085) under catalog #29086.  It may also be

used in custom applications where manifold #29085 is not being used.

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FUEL RAIL KIT:  Install fuel rail kit and your injectors using the included 1/4”-20 nuts and bolts.  Apply an o-ring

assembly lube to the injector o-rings before installing them into the manifold and fuel rails.  Brake system assembly

lube works well.  Make sure that the o-rings of the injectors create a complete seal with the fuel rail and the intake

manifold to prevent any air or fuel leaks

Kit includes the following:

❑

2 - Machined fuel rail extrusions (fuel rail ends tapped for 3/8" pipe)

❑

4 - Fuel Rail Stand

❑

4 - ¼”-20 x 1-¼” Hex Head Bolt

❑

4 - ¼”-20 Hex Nut

❑

8 - ¼” AN Washer

❑

4 - ¼” Lock Washer

❑

4 - ¼”-20 x ½” Socket Head Bolt

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FINAL CHECKS:  After finishing assembly, check the following:

❑

Check the fit of each injector.  They should be able to rotate freely.  The O-rings should be fully inside their

respective bores.

❑

Activate the fuel pump and fully check the system for any leaks prior to starting the engine.

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

Tech-Line:  800-416-8628 • E-Mail:  Edelbrock@Edelbrock.com