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Air injection modification – Vortech 1993-1997 5.7L LT1 F-Body User Manual

Page 15

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A. Place the supplied air injection adapter into the

driver’s side exhaust air injection manifold port
with the taper facing up (if the exhaust manifold
is machined with an inverted flare seat for the
air injection flare fitting, ignore this point). See
Air Injection Modification diagram. If the
threads in the manifold are unusually deep
(such as in some aftermarket exhausts), use
the supplied washers to “space” up the adapter.

B. Thread the supplied tube nut and 5/8” flared

tube into the factory exhaust manifold injection
port.

10

7.

Discharge Tubing/Manifold AIR Injection Modification

3/4” x 5/8” x 180

°

Hose

Factory

Diverter Valve

(driver’s side)

3/4” x 6”

Hose

AIR INJECTION MODIFICATION

Factory Air Pump

3/4” Factory
Check Valve
(if equipped)

5/8” Tee

2”

To passenger’s

side air

injection hose

5/8” Tube Assembly

Air Injection

Adapter

Exhaust Manifold

(driver’s side)

5/8” x 90

° Molded Hose

(trim long end to fit)

5/8” Barb

© 2000 Vortech Engineering, Inc.

All Rights Reserved, Intl. Copr. Secured

31JAN00 V 1.0