Vortech 1999-2006 4.8L/5.3L/6.0L Light Truck/SUV User Manual
Page 22
P/N: 4GL020-010
©2008 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
08OCT08 v5.0(99-07 GM Trk (4GLv5.0))
12
A. Install the supplied 3-1/2” x 3” sleeve onto the
MAF sensor outlet.
B. Reinstall the upper fan shroud with the exception
of the top two bolts.
C. Remove any plastic clips that are no longer used
to secure the radiator hose.
D. Slide the entry of the large plastic inlet duct (see
Fig. 10-d) into the sleeve installed on the MAF.
Lower the inlet duct onto the top of the radiator
shroud. Reinstall the factory radiator shroud bolts
through the two supplied inlet duct mounting
tabs and into their original bolt holes.
E. Insert the supplied 1/4-20 x 1/2” screws through
the bracket and into each side of the inlet duct
using the supplied washers. Tighten the screws.
(See Fig. 10-a.)
F. Install the supplied 180° inlet duct onto the inlet
of the supercharger after the supercharger is
installed. Orient the duct so that the inlet is at
the same level as the outlet of the large duct just
installed. Tighten the supplied T-Bolt hose clamp
on the aluminum ring around the supercharger
inlet. Make sure there is sufficient clearance
between the duct and the master cylinder.
G. Install the supplied #52 hose clamps and 3-1/2”
x 9” long flex hose between the two ducts just
installed. (See Fig. 10-b.)
H. Using the supplied 3/8” hose mender, connect
the supplied 3/8” hose from the back of the inlet
duct to the passenger side valve cover breather
hose. Secure the hose so that it cannot interfere
with the throttle arm or cable. (See Fig. 10-c.)
I. Install and tighten the hose clamps on each
connection. (See Fig. 10-d.)
Fig. 10-a
10.A InLET DUCT InSTALLATIOn (99-03 Models)
Fig. 10-b
Fig. 10-c
Fig. 10-d
SUPPLIED
3/8” HOSE
SUPPLIED 3/8”
RUBBER CAP
NOTE: For 2001-2003 6.0L models, a 180° cast
aluminum duct will be in place of the
described plastic duct.
FACTORY
SHROUD BOLT
SUPPLIED DUCT
MOUNTING TABS
(LEFT & RIGHT)
SUPPLIED 1/4-20
HARDWARE