Edelbrock 1551 Installation Instructions Manual

©2010 Edelbrock LLC

Brochure #63-1551

Page 1

Edelbrock E-Force Supercharger Kits

Rev. 7/10 - AJ/mc

EDELBROCK E-FORCE SUPERCHARGER KITS

Part #1551, 15511, 1552, 15521, 1553, 15531, 1554,

15541, 15611, 15621, 15631, 15641

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 qualified 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.

IMPORTANT NOTE: Proper installation is the responsibility of the installer.  Improper installation

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

DESCRIPTION: Edelbrock E-Force Supercharger kits are designed for 302-400 C.I.D. small-block Chevrolet engines. These kits are capable of

producing over 500 HP on most applications. Superchargers will accept standard flange 4-bbl carburetors. Some kits include an 800 CFM Thunder

Series AVS carburetor (See “Applications” below). Kit includes all items necessary for installation on most small-block Chevrolet applications. Some

modification or aftermarket parts may be required for your particular application such as throttle/kickdown bracketry and cables, waterneck, and

accessory pulleys. Kits will work on LONG-STYLE water pump applications ONLY (unless otherwise mentioned) and are not compatible

with HEI distributors due to clearance. Please read “Before Beginning Installation” section for additional details.

APPLICATIONS:

For Small Block Chevrolet Using Stock V-Belt Driven Accessories

#1551 (As Cast) / 15511 (Polished):

Engines with 1986 and earlier (standard bolt-pattern) cylinder heads.

#1552 (As Cast) / 15521 (Polished):

Engines with Vortec/E-Tec style cylinder heads.

#1553 (As Cast) / 15531 (Polished):

Engines with 1986 and earlier (standard bolt-pattern) cylinder heads. Includes carburetor.

#1554 (As Cast) / 15541 (Polished):

Engines with Vortec/E-Tec style cylinder heads. Includes carburetor.

For Small Block Chevrolet Using Billet Specialties Tru Trac Pulley System**

#15611 (Polished):

Engines with 1986 and earlier (standard bolt-pattern) cylinder heads.

#15621 (Polished):

Engines with Vortec/E-Tec style cylinder heads.

#15631 (Polished):

Engines with 1986 and earlier (standard bolt-pattern) cylinder heads. Includes carburetor.

#15641 (Polished):

Engines with Vortec/E-Tec style cylinder heads. Includes carburetor.

**Kits require short-style, reverse-rotation water pump.

BEFORE BEGINNING INSTALLATION

WARNING: EXPOSED FUEL AND OIL WILL BE PRESENT DURING THIS INSTALLATION.  WHEN WORKING AROUND 

GASOLINE OR OIL, ALWAYS WORK IN A WELL VENTILATED AREA, AND KEEP ALL OPEN FLAMES, SPARKS, AND OTHER 

SOURCES OF IGNITION AWAY FROM THE WORK AREA.  FAILURE TO DO SO CAN RESULT IN A FIRE OR EXPLOSION.

WARNING: SOME PROCEDURES IN THIS INSTALLATION MAY REQUIRE THE VEHICLE TO BE RAISED ON JACKSTANDS OR A LIFT.

WHEN RAISING A VEHICLE, MAKE SURE THE VEHICLE IS ON LEVEL GROUND AND SUPPORTED SECURELY BY JACKSTANDS.  

NEVER WORK UNDER A VEHICLE THAT IS SUPPORTED BY A JACK ONLY!

BEFORE BEGINNING: Someone who has a basic knowledge of automobile repair and modification and is familiar with and comfortable with working

on their vehicle can accomplish the mechanical installation of this kit using common tools and procedures. However, successful operation of the engine

with this supercharger kit requires a working knowledge of the set-up and tuning of an engine. Keeping a service manual for your vehicle on hand for

reference is helpful. This supercharger kit is capable of supporting over 500 HP and will substantially increase the power output of your engine.

Before installing this kit, you should ensure that your engine is in good condition and is capable of supporting these power levels.

Consult a Factory Service Manual for the proper compression test procedure and acceptable in-service limits. This kit is intended to be used on

modified street/strip engines. The required modifications to your engine and fuel delivery system are dependent on the boost pressure and power

output. Aftermarket pistons, connecting rods, and valves are recommended to assure engine durability. See “Boost and Ignition Timing” on the next

page for further information. The higher power output will require an aftermarket high-volume fuel pump such as Edelbrock #1711 (130 gal/hr), 1721

(110 gal/hr), 17000 (175 gal/hr), 1791 (120 gal/hr, electric), or 1792 (160 gal/hr, electric). The valve lash or lifter preload should be properly adjusted.