Billet Specialties LS7 User Manual
LS7 CHEVROLET TOP MOUNT
Installation Manual
For Systems without A/C
#13465 / #13495
500 Shawmut Ave. • La Grange, IL 60526
Tech (708) 588-0505 • Fax (708) 588-7181
Billet Specialties, Inc.
www.billetspecialties.com • Tech Line 708.588.0505
2
LS7 Top Mount Tru Trac - 13465 / 13495
3
PLEASE READ ALL INSTRUCTIONS BEFORE INSTALLING ANY
COMPONENTS OF THE TRU TRAC SERPENTINE SYSTEM
Tech Line: 708.588.0505
Fax: 708.588.7181
www.billetspecialties.com
Important:
Thoroughly read the instructions, the removal and installation of the damper requires
special tools, if after reading the instructions and you feel you may not be able to
install the damper correctly Billet Specialties recommends you to have a professional
mechanic perform the installation.
Required Tools & Materials
Anti-seize Compound
LocTite 272 Thread Locker
1/2" Drive Impact Wrench
Torque Wrench Capable of 250ft/lbs.
Damper Installation Tools
GM Part Number Description
J-41816 Crankshaft balancer remover or similar
J41816-2 Crankshaft balancer remover step plate
J-42386-A Flywheel holding tool
J-41665 Crankshaft balancer and sprocket installer
J-41478 Crankshaft front oil seal installer
J-45059 Angle Meter
Included Serpentine Belt
With P/S Goodyear 6-Rib Poly-V Serpentine Length: 63.0" #4060630
Without P/S Goodyear 6-Rib Poly-V Serpentine Length: 61.0" #4060610
1/4” Hex Key
3/16” Hex Key
5/16” Hex Key
1/2” Combination Wrench
3/4” Combination Wrench
TECH TIP:
Billet Specialties recommends the use of Anti-Seize on all fasteners
to prevent thread lock-up.
5mm Hex Key
6mm Hex Key
8mm Hex Key
Packaged With Power Steering Pump Packaged With Water Pump
x3
10mm-1.50 x 25mm Set Screw
1.425" Stand-Off
x3
x3
8mm-1.25 x 92mm Block Mounting Stud
8mm-1.25 x 118mm Block Mounting Stud
Socket Wrench & Extension
1/2" Drive Breaker Bar
10mm 12pt. Socket
12mm 12pt. Socket
1-1/16" 12pt. Socket
3/8” 12pt. Socket
5/8" Hex Socket (1/2" Drive)
24mm Hex Socket (1/2" Drive)
x3
x2
8mm-1.25
Hex Nut
Discard After Use
x2
10mm-1.50 x 20mm Socket Head Cap Screw
5/16-18 x 2-3/4" Socket Head Cap Screw
x2 x2
5/16"
Lock Washer
x1
8mm-1.25 x 95mm Socket Head Cap Screw
x2
1.103" Stand-Off 1.035" Stand-Off
x3
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LS7 Top Mount Tru Trac - 13465 / 13495
5
Packaged In Main Box
x4
x1
5/16-18 x 1" Hex Head Cap Screw
x1
3/8-16 x 3/4" 12pt. Cap Screw
x2
8mm-1.25 x 25mm 12pt. Cap Screw
3/8-16 x 2-1/4" 12pt. Cap Screw
x1
x1
5/16"
Flat Washer
8mm-1.25 x 25mm Flat Head Cap Screw
x2
8mm-1.25 x 40mm Flat Head Cap Screw
x4
5/16-24 x 3/4" Socket Head Cap Screw
x3
3/8-16 x 1-1/4" Socket Head Cap Screw
x3
3/8"
Bellville Washer
x1
10mm-1.5 x 70mm 12pt. Cap Screw
LS7 Damper Bolt - GM Part #11570163 x1
x2
.5mm
Shim Washer
x2
1mm
Shim Washer
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LSx Top Mount Tru Trac - 13455 / 13475
7
Engine Prep
• Disconnect battery
• Remove existing accessory drive and water pump
• Remove factory crank pulley bolt with an impact wrench and 24mm socket
• Save the existing crank bolt, you will need it later
• Remove crank pulley/damper with the recommended tools:
• J-41816 Crankshaft balancer remover or similar
• J-42386-A Flywheel holding tool
• J-41816-2 Crankshaft balancer remover step plate
• Clean gasket areas, inspect front crank seal and replace if necessary
GM P/N 12585673
• Leave flywheel holding tool in position for damper installation
Install Crank Damper
Source: GM document #642784
Recommended Installation Tools:
• J-41665 Crankshaft balancer and sprocket installer
• J-41478 Crankshaft front oil seal installer - Use threaded rod and nut only
• J-42386-A Flywheel holding tool
• J-45059 Angle meter
• Inspect crank snout for burrs or scratches - clean up with fine emery cloth or steel wool.
• Slide the new damper on crank snout as far as possible.
• Use the J-41665 and the threaded rod and nut from J-41478 in order to install the balancer.
• Assemble the threaded rod, nut, washer and installer. Insert the smaller end of the installer
into the front of the balancer.
IMPORTANT: The nose of the crankshaft should be recessed 2.4 - 4.48 mm (0.094 - 0.176 in)
into the balancer bore. Remove the old bolt and measure the hub to crankshaft distance.
Installing New Crankshaft Bolt
• Coat the three to five threads of the new bolt with LocTite 272 thread locker.
Notice: Be sure to follow the torque procedure for installing the new crankshaft bolt. Use of
impact tools, or not using torque and angle method will result in joint failure.
• Install and tighten the new crankshaft bolt a first pass to 37 ft.lbs. (50N·M)
• Put a paint stripe on the bolt running from the 12 o'clock to the 6 o'clock position in order to
verify the correct torque requested in the next step.
IMPORTANT: When tightening for the second pass, a minimum torque of 236 ft.lbs. (320 N·M)
should be observed. If this torque is not achieved, the bolt (GM part #11570163) should be
replaced.
• Tighten the crankshaft balancer bolt a second pass to 140 degrees using the J-45059.
IMPORTANT: Recheck the position of the previously painted stripe to assure 140 degree
rotation. Achieving the correct torque angle is critical to the success of this repair.
Over-torquing or under-torquing the joint will result in an unsatisfactory installation.
• Remove the J-42386-A Flywheel Holding Tool.
• Using a wrench hold the hex end of the threaded rod. Use a second wrench and rotate
the installation tool nut clockwise until the balancer is started onto the crankshaft.
• Remove the tool and reverse the tools direction. Position the larger end of the installer
against the front of the balancer.
• Using a wrench hold the hex end of the threaded rod. Use a second wrench and rotate
the installation tool nut clockwise until the balancer is installed onto the crankshaft.
• Remove the balancer installation tool.
• Install the old balancer bolt and tighten. Tighten old balancer bolt to 240 ft.lbs. (330N·M)
IMPORTANT: Failure to apply proper torque to the old balancer bolt may result in the
balancer not being fully seated. This could lead to failure of this joint in the future.
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