Billet Specialties V-Trac V4120, V-Trac V4220 Installation Manual

INSTALLATION MANUAL
CHEVROLET BIG BLOCK

V4120 / V4220

Billet Specialties, Inc.
500 Shawmut Avenue
La Grange, Illinois 60526
TECH Line 708.588.0505
Fax [phone]
www.billetspecialties.com

Spacer Nut - 3”

x2

7/16-14 x 2-1/4” Socket Head Cap Screw
(Power Steering Bracket)

x2

5/16-24 x 3” Socket Head Cap Screw
(Power Steering Pump)

x2

5/16”

Lock Washer

x4

3/8-16 x 3” Block Mounting Stud

x4

Required Tools & Materials

Anti-seize Compound

RTV Silicone

Gasket Scraper

Scotch-Brite® Pad

3/8-16 Thread Chaser* & Holder

7/16-14 Thread Chaser*

*Thread chasers are available at your
local parts store and are different from
a thread cutting tap.

11/16” Combo Wrench

3/4” Combo Wrench

Socket Wrench & Extension

10mm 12pt. socket

12mm 12pt. socket

3/16” Allen

5/16” Allen

1/4” Allen

3/8” Allen

6mm Allen

PLEASE READ ALL INSTRUCTIONS BEFORE INSTALLING ANY

COMPONENTS OF THE V-TRAC PULLEY SYSTEM

Tech Line: 708.588.0505

Fax: [phone]

www.billetspecialties.com

Skin Board #1 - Packaged with Power Steering Pump

Skin Board #3 - Packaged In Main Box

Skin Board #2 - Packaged with Water Pump

Other Hardware

Goodyear Gatorback V-Belt - Compressor 44-1/2”
Goodyear Gatorback V-Belt - Alter nator 43” (w/o Power Steering) - 45” (w/ power steering)

x7

x1

10mm-1.5 x 80mm 12pt. Cap Screw
(Alternator)

x2

x2

10mm x .5mm

Shim Washer

x4

O-Ring Set

10mm x 1mm
Shim Washer

x3

3/8-16 x 1” Socket Head Cap Screw
(Crankshaft Pulley)

x2

7/16-14 x 1-1/2” Socket Head Cap Screw
(Alternator Bracket - Not used with Power Steering Kits)

x2

x3

3/8” Belleville Washer

(Crankshaft Pulley)

3/8-16 Zinc Coated

Hex Nuts

(Discard After Use)

x3

1/4-20 x 3/4”

Socket Head Cap Screw

(Compressor Cover)

x2

8mm-1.25 x 25mm

Socket Head Cap Screw

(A/C Manifold)

x4

5/16-24x1/2”

Socket Head Cap Screw

(Water Pump Pulley)

x1

Compressor Shoulder Bolt
(A/C Compressor)

x1

Compressor Shoulder
Bolt Washer

8mm Slide Spacer

x2

8mm-1.25 x 25mm
12pt. Cap Screw
(Bridge Bracket)

Install the large O-rings into both sides of the passenger side compressor bracket
by seating them into the recessed groves. Place bracket over studs and seat up
against engine block.

Install the large O-rings into both sides of the driver side alternator bracket by
seating them into the recessed groves. Place bracket over studs and seat up
against engine block.

For kits with power steering – apply anti-seize to the threads of the two
7/16-14 x 2-1/4” socket head cap screws and thread through the power steering
bracket, alternator bracket and into engine block and finger tighten.

For kits without power steering – apply anti-seize to the threads of the two
7/16-14 x 1-1/2” socket head cap screws and thread through the alternator
bracket and into engine block and finger tighten.

Figure 2: Install Alternator & A/C Brackets

5

Disconnect battery & remove all existing accessory drive brackets and
components from motor.

Remove water pump, scrape away any existing gasket material with a gasket
scraper and dress sur face with a Scotch Brite® pad.

Clean and prep threads on engine block at water pump (3/8-16) and driver side
bosses (7/16-14) by crank (for power steering kits). Use a 3/8-16 & 7/16-14 thread
chaser if necessary. Thread chasers are available at your local auto parts store or
tool dealer and are different from a thread cutting tool.

Apply RTV sealer to one end of the four 3/8-16 x 3” threaded studs and thread
studs into the water pump mounting holes and tighten.

The studs can easily be tightened by threading two 3/8-16 zinc coated nuts onto
the stud and tighten them against each other to act as a drive nut.

TECH LINE: 708-588-0505 FAX [phone] www.billetspecialties.com

Figure 1: Prepping The Block

*Example

If you do not have power steering proceed to Step 2.

STEP 1: Apply anti-seize to the threads of the two 5/16-24 x 3” socket head cap
screws. Place power steering pump and pulley onto bracket and thread the two
5/16” socket head cap screws with 5/16” lock washers through pump into
bracket and tighten firmly.

STEP 2: Apply anti-seize to the threads of four 8mm-1.25 x 25mm 12pt. ARP cap
screws. Align bridge bracket mount holes with the four spacer nuts. Install the four
8mm 12pt. ARP cap screws and tighten firmly.

Figure 4: Install Power Steering Pump & Bridge Bracket

7

Install water pump onto studs (make sure O-rings are still seated).

Apply anti-seize to exposed stud threads. Thread the four 3” spacer nuts onto the
studs with the hex end out. Tighten all spacer nuts firmly at this time.

Also tighten lower 7/16” cap screws on alternator bracket or power steering
bracket.

TECH LINE: 708-588-0505 FAX [phone] www.billetspecialties.com

Figure 3: Install Water Pump

Install the crank pulley by applying anti-seize to the threads of the three
3/8-16 x 1” socket head cap screws, install the three 3/8” Belleville washers onto
each cap screw and thread through crank pulley into damper.

Install the water pump pulley by applying anti-seize to the threads of the four
5/16-24 x 1/2” socket head cap screws and threading them through the water
pump pulley into flange.

Install the compressor cover by applying anti-seize to the three 1/4-20 x 3/4”
socket head cap screws and threading them through compressor cover and into
compressor clutch.

Tighten all fasteners firmly.

Figure 6: Install Crank Pulley, Water Pump Pulley, &
Compressor Clutch Cover

9

Alternator: Apply anti-seize to the threads of the 10mm-1.5 x 8mm ARP 12pt. cap

screw and a 8mm-1.25 x 25mm ARP 12pt. cap screw. Place alternator between
lower bridge bracket and alternator bracket and thread the long ARP 12pt. cap
screw through the bridge bracket, alternator and into the alternator bracket and
finger tighten. 10mm shim washers are provided to shim the alternator boss to the
bridge bracket. The alternator boss may vary in width due to the polishing pro­cess. Place the 8mm slide spacer with the small end towards bridge bracket on
the short ARP 12pt. cap screw, align top alternator boss with bridge bracket and
thread the cap screw and slide spacer through bridge bracket and into alterna­tor boss and finger tighten.

Compressor: Apply anti-seize to the threads of the 3/8-16 compressor shoulder
bolt and two 8mm-1.25 x 25mm ARP 12pt. cap screws. While supporting the
compressor, place the shoulder bolt and washer into the back compressor mount
boss and align with compressor bracket on motor and finger tighten. Thread one
8mm ARP 12pt. cap screw through bridge bracket and into lower compressor
boss and finger tighten. Place the 8mm slide spacer with the small end towards
bridge bracket on the short ARP 12pt. cap screw, align top compressor boss
with bridge bracket and thread the cap screw and slide spacer through bridge
bracket and into compressor boss and finger tighten.

TECH LINE: 708-588-0505 FAX [phone] www.billetspecialties.com

Figure 5: Install Alternator & A/C Compressor

*Flange of spacer fits into
adjustment slot on bracket.

Compressor Side

Alternator Side

Route belts as shown in appropriate diagram, adjust alternator belt tension first.
Tighten alternator mounting hardware firmly. Adjust compressor belt tension,
tighten rear compressor shoulder bolt firmly then front compressor cap screw
firmly. Finish by tightening the top compressor cap screw.

Re-check all fasteners for tightness and proper belt tension. Connect all electrical
and start motor and allow to warm up. Turn motor off and re-check fasteners and
belts. Re-check after 100 miles.

Alternator Belt Length:
With Power Steering - 45”
Without Power Steering - 43”

Compressor Belt Length: 44-1/2”

Figure 8: Install Belt

11

Compressor Manifold – Read the precautions below, BEFORE installing the
compressor manifold. To install themanifold remove the bolts & protective cover,

being sure to leave the o-rings on compressor. Apply anti-seize to the threads of
the two 8mm-1.25 x 25mm socket head cap screws. Place manifold on
compressor and attach with the two 8mm cap screws and tighten firmly. Attach
compressor lines at this point or seal off threaded ends of manifold.

IMPORTANT

• Only remove sealed cap on compressor and install manifold if you plan on
charging your system immediately, leaving the compressor open to outside air
can introduce moisture into the system causing the cooling system not to
operate properly.

• Never connect the compressor clutch wire and run the compressor unless the
system is charged. Serious damage may occur to compressor. Do not install the
manifold unless you are going to finish installing the a/c hoses and never connect
the compressor clutch wire until system is ready to charge with Freon.

• Although the compressor is supplied with oil, the level may not be correct for
the entire system. Consult the instruction manual of the air conditioning unit for
proper levels and system charging procedures.

• Billet Specialties recommends having your air conditioning charged and
serviced by an automotive air conditioning service center with the proper
equipment to ensure many years of proper operation.

TECH LINE: 708-588-0505 FAX [phone] www.billetspecialties.com

Figure 7: Install A/C Compressor Manifold

Without Power Steering

With Power Steering

V4120 / V4220

Billet Specialties, Inc.

500 Shawmut Avenue

La Grange, Illinois 60526

Tech Line 708-588-0505

Fax [phone]

www.billetspecialties.com