Big Block Installation Manual For Systems without A/C Billet Specialties, Inc. 500 Shawmut Ave.
Hardware List For Chevrolet Big Block Tru Trac Serpentine System Without A/C Bridge Bracket Screws 8mm-1.25x25mm 12pt. Cap Screw x1 x1 x4 8mm-1.25x25mm Flat Socket Cap Screw 8mm-1.25x40mm Flat Socket Cap Screw Tensioner Screws x1 Short Spacer Nut x1 x1 x1 3/8-16x3/4” 12pt. Cap Screw x3 Long Spacer Nut 8mm-1.25x25mm Socket Set Cup Point 3/8”-16x1” Hex Flange Bolt x1 Tensioner Spacer Nut With Boss Crank Pulley Screws Alternator Screws x3 x1 10mm-1.5x80mm 12pt. Cap Screw x1 10mm x .
Figure 1: Prepping The Block Figure 2: Install Mounting Studs Start by removing any accessories that may be on the motor. Install the four 3/8-16x3” block mounting studs until the To ease in the installation of the studs and fasteners, chase threads are completely screwed into the block.
Figure 3: Install O-Rings & Water Pump Spacer Bracket Figure 4: Install Alternator Bracket The water pump spacer and alternator mounting Slide the alternator bracket onto the water pump studs on brackets incorporate o-rings for sealing. driver side of block and seat against the block. Slide the water pump spacer bracket onto the water pump studs on passenger side of block and seat against block. Attach to block with 7/16-14x1-1/4” socket head cap screw. www.billetspecialties.
Figure 5: Power Steering Vs. Non-Power Steering Figure 6: Install Water Pump & Spacer Nuts If your kit does not include power steering, now is the time Slide the water pump over the four mounting studs. Install to install the two 7/16-14 x 1-1/2” socket head cap screws on the lower end of the alternator bracket. If your kit does include power steering, proceed to Figure 6. the four spacer nuts that hold the water pump in place. The short spacer nut attaches to the passenger side lower stud.
Figure 7: Install the Tensioner Figure 8: Install Power Steering Bracket, Pump & Pulley Thread 8mm-1.25x25mm socket set stud into the tensioner Install the power steering bracket using two 7/16-14x2-1/4” spacer nut with boss, tighten with 4mm allen key (stud installs socket head cap screws on the lower end of the alternator in spacer nut opposite of boss). Attach the tensioner spacer bracket and tighten. Attach the power steering pump and nut with boss to the backside of tensioner.
Figure 9: Install Crankshaft Pulley Install the crankshaft pulley on the harmonic balancer using three 3/8-16 x 1” socket head cap screws and three 3/8” belleville washers. Torque to 35 ft. lbs. Figure 10: Attaching Bridge Bracket Install the bridge bracket to the three water pump spacer nuts using three 8mm-1.25 x 25mm 12 pt. cap screws. The bridge bracket also attaches to the tensioner using a 8mm-1.
Figure 11: Attaching Alternator To install the alternator insert the alternator behind the bridge bracket and install the 10mm-1.5 x 80mm 12 pt. cap screw in the lower alternator mounting hole. The alternator mounting Figure 12: Finish Bridge Bracket Installation At this point we are ready to tighten the long spacer nuts and hex flange bolt on tensioner bracket. Once these are boss may vary in width in the polishing process.
Figure 13: Install Tensioner Pulley Figure 14: Install Water Pump Pulley onto Pump Install the tensioner pulley and aluminum load washer onto Install the water pump pulley on the water pump using four the tensioner using a 3/8-16 x 3/4” 12 pt. cap screw. 5/16-24 x 1/2” socket head cap screws. www.billetspecialties.
Figure 15: Install Serpentine Belt Figure 16: Completed Tru Trac With a 5/8” six-point socket or six-point box wrench, turn the belt tensioner release nut clockwise to unload the spring. Slip the belt over the tensioner into the belt groove. Illustration: Serpentine Belt Path with Power Steering www.billetspecialties.
Billet Specialties, Inc. 500 Shawmut Ave. La Grange, IL 60526 Tech Line 708/588-0505 Fax 708/588-7181 billetspecialties.
