Vortech 1990-1995 5.7L TBI Truck/SUV User Manual

Page 18

P/N: 4GB020-010
©2002 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
22FEB02 V1.1

(LT. TRUCK (4GB V1.1))

11. AIR FILTER, INLET DUCT AND PLENUM

A. Modify the stock resonator chamber by cutting off

the end at the point where the radius stops.

B. Remove the internal baffle tube and deburr the

cut edge.

C. Fit the new end cover, with the air filter element

provided, over the end of the resonator chamber.
Secure the covered end by drilling two 3/32"
holes (transfer the location from the cover) and
fasten with the screws provided.

D. Secure the inlet tube bracket to the second bolt

from the front on the inlet manifold right side.

E. Assemble the inlet tube and inlet elbow and

connect to the supercharger inlet using the blue
sleeves and clamps provided.

F. Fasten the inlet tube to the bracket with another

clamp.

G. Connect the new air filter end cover to the inlet

tube with the 3-1/2" diameter flex tube and clamps.

H. Attach the crankcase vent from the left valve

cover to the fitting on the inlet tube.

NOTE: On 1993 model years and later, it will be

necessary to replace the resonator unit
with the earlier type prior to modifying. The
Chevrolet part number is 25097949.

Fig. 11-a

CUT OFF END AT

END OF RADIUS

STOCK RESONATOR

VORTECH FILTER AND

END COVER