Vortech 1999-2006 4.8L/5.3L/6.0L Light Truck/SUV User Manual
Page 23
P/N: 4GL020-010
©2008 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
08OCT08 v5.0(99-07 GM Trk (4GLv5.0))
13
A. Install the supplied 3-1/2” x 3” sleeve onto the
MAF outlet, and the 3-1/2” x 2” sleeve on the
inlet of the supercharger.
B. Reinstall the upper fan shroud with the excep-
tion 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.B-d) into the sleeve installed on
the MAF. Lower the inlet duct onto the top of
the radiator shroud. Reinstall the factory radia-
tor 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.B-d.)
F. Using Fig. 10.B-b, drill a 9/16” hole in the shown
location. Use a 1/4”NPT tap and install the sup-
plied 1/4” NPT x 3/8” hose barb.
G. Install the supplied 180° inlet duct onto the inlet
of the supercharger. Orient the duct so that it
swoops over the side of the supercharger with
the end pointing at the crossover duct.
H. Install the supplied #52 hose clamps and 3-1/2”
x 7” long flex hose between the two ducts just
installed. (See Fig. 10.B-b.)
I. Use the supplied 3/8” hose from the 3/8” fitting
on 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.B-c.)
J. Install and tighten the hose clamps on each
connection. (See Fig 10.B-d.)
10.B InLET DUCT InSTALLATIOn (2004 - 2006 4.8L / 5.3L Models)
Fig. 10.B-b
Fig. 10.B-d
Fig. 10.B-c
Fig. 10.B-a
SUPPLIED
1/4-20
HARDWARE
SUPPLIED DUCT
MOUNTING TABS
(LEFT & RIGHT)
AREA TO
TRIM
ELECTRIC
FAN
SHROUD
ON BOTH
SIDES
NOTE: If the vehicle is supplied with electric fans
from the factory, refer to Fig. 10.b-a to modify
the plastic shrouding for the Vortech supplied
brackets to mount.