Vortech GM 5.3L/6.2L Light Truck/SUV - 2007-2008 User Manual

Page 16

P/N: 4GL020-018

11NOV08 GM Trk/H2(4GL..018v2.0)

INLET DUCT INSTALLATION

A. Install the supplied 3.7"x3.5" reducer sleeve

onto the MAF outlet, and the 3-1/2" x 2"

sleeve on the inlet of the supercharger.

B. Remove any plastic clips that are no longer

used to secure the OEM radiator hose.

C. Slide the entry of the large plastic inlet duct

into the sleeve installed on the MAF (See Fig.

6-a). Lower the inlet duct onto the top of the

radiator shroud.

D. 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 6-a.)

E. Using Fig. 6-b, drill a 9/16" hole in the shown

location. Use a 3/8"NPT tap and install the

supplied 3/8" NPT x 3/8" hose barb.

F. Install the supplied 180° inlet duct onto the

inlet of the supercharger after the supercharg-

er is installed. Orient the duct so that it

"swoops" over the side of the supercharger

with the end pointing at the crossover duct.

(See Fig 6-d.)

G. Install the supplied #52 hose clamps and

3-1/2" x 7" long flex hose between the two

ducts previously installed. Trim hose if need-

ed.

H. Use the supplied 3/8" hose from the 3/8" fit-

ting 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 6-c.)

I. Install and tighten the hose clamps on each

connection. (See Fig. 6-a.)

Fig. 6-b

Fig. 6-c

Fig. 6-d

SUPPLIED

3/8" HOSE

SUPPLIED 3/8"

RUBBER CAP

NEW LOCATION

TO DRILL

Fig. 6-a

NOTE: The end of the plastic inlet duct that fits into the MAF sleeve

may require trimming on some applications.