Edelbrock 29086 User Manual
Catalog #29085, #29086
Rev. 5/05 - RS/mc
Rev. 5/05 - RS/mc
Page 2 of 2
©2005 Edelbrock Corporation
Brochure #63-0341
•
INSTALLATION PROCEDURE:
1. (
Note: Use only original equipment (GM P/N 12533587) O-Ring type
gaskets when installing this intake manifold). No gasket sealer is
required when using the OEM type gaskets. Using the supplied 6mm
x 50mm hex head bolts and 1/4” AN washers, mount the manifold to
x 50mm hex head bolts and 1/4” AN washers, mount the manifold to
the engine. The Gen III throttle bracket mounts under the two left side
rear intake manifold bolts. Following the torque sequence in
Figure 1, torque all manifold bolts to 11 ft/lbs.
rear intake manifold bolts. Following the torque sequence in
Figure 1, torque all manifold bolts to 11 ft/lbs.
2. Select the appropriate cable brackets for your application (large or
small opening brackets) and attach them to the GEN III throttle
bracket base with the appropriate number of 6mm x 1.0 x 12mm
serrated flange hex bolts. (
serrated flange hex bolts. (
Note: In our retrofit of the LS1 into a
1974 Camaro, using a TH400R automatic transmission, we only
needed one of the small opening cable brackets for the throttle cable,
since a kickdown cable is not used. See
since a kickdown cable is not used. See
Figure 2 for example.)
•
FUEL RAIL KIT (29086 only): Install fuel rail kit using the included stands and 1/4”-20 nuts and bolts. For 29085, a fuel rail
kit may be purchased separately under part #3638. Fuel rail kit 3638 may also be used in custom applications where manifold
kit may be purchased separately under part #3638. Fuel rail kit 3638 may also be used in custom applications where manifold
29085 is not being used.
• INJECTOR SELECTION AND INSTALLATION: It is important to select the appropriate electronic injectors for optimum
performance. The injectors must not only match the fuel demands of an engine, but they must also match the electronic
capability of the engine control unit (ECU). When installing the injectors onto the manifold, make sure that the O-rings of the
capability of the engine control unit (ECU). When installing the injectors onto the manifold, make sure that the O-rings of the
injectors create a complete seal to prevent any air or fuel leaks. The same precaution should be applied when assembling the
injectors to the fuel rails. Use assembly lube on O-rings when installing injectors. Brake assembly lube works well.
injectors to the fuel rails. Use assembly lube on O-rings when installing injectors. Brake assembly lube works well.
•
FINAL CHECKS: After assembling the injectors, fuel rails, support brackets, throttle body, spacer (if needed), gaskets, and air
cleaner, check the following:
cleaner, check the following:
❑
Have an assistant depress and release the gas pedal. Check for full open throttle at the throttle body. Check for any possible
interference of the throttle with other components. Make sure the throttle can return without binding.
interference of the throttle with other components. Make sure the throttle can return without binding.
❑
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.
Figure 2 - Throttle Cable Bracket
Edelbrock Corporation • 2700 California St. • Torrance, CA 90503
Tech-Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com