CHEVY SMALL BLOCK SERPENTINE DRIVE
Outward Mount Alternator and Air Conditioning
Optional Power Steering and For Blower & Ram Jet Engines




"Blower Kit"

This system bolts to the front of any 1969 or later small block Chevy heads. Precision CNC machined from solid billet 6061-T6 aluminum to fit perfectly and handle high torque and vibration. This bracket kit comes complete with stainless steel tensioning rods and chrome moly rod ends for high performance operation. All necessary hardware included. Powdercoated to eliminate polishing in those hard to reach places. Matching serpentine pulleys are precision CNC machined from 6061-T6 aluminum. This is the same material we use for NASCAR pulleys! These pulleys will not fracture like common cast pulleys. High tensile strength means much longer wear. We go as far as hard coating the high wear areas on our pulleys! Our street rod ratio increase water flow and fan speed. This helps at critical low speed driving.

Application:
This kit is designed to fit 1955 or later Chevys and 1968-1982 Corvettes. It requires 1984-1991 Corvette reverse rotation short water pump.
Blower Setups...Call for different Idler Arrangements

GM A Body, 1970 and newer F Body, and G Body Vehicles require remote reservoir power steering kits. Will not fit 62-67 Novas with factory shock towers.

Kit Includes:
• Alternator and A/C brackets
• Tensioning rods and adjustable rod ends
• Alternator relocation arm
• Idler bracket with dual idlers
• Heater hose extension fitting
• Crank pulley, water pump pulley with nose cover and Alternator pulley with fan and nose cover
• A/C clutch cover
• Grade 8 Mounting hardware
• Power steering kit includes power steering bracket and pulley

Optional Matching Billet Aluminum Accessories:
• #400 crank pulley nose cover (high water flow kits only)
• #450 billet remote power steering reservoir canister

Works with OEM, Hot Rod Air and Vintage Air A/C Systems

Instructions for this kit available for download, PDF file



84-91 Vette Small Block Rev. Rotation Water Pump

 

Check Bolt Pattern - (A)
A=4 3/16" Kits for Engines with 1969 - Later Cast Iron Heads & Aftermarket Aluminum Heads
Kit # Drives
Alternator
A/C
Water Pump
Saginaw Keyway P/S Pump
Saginaw Press Fit P/S Pump
Remote Reservoir Power Steering
Belt Size
20405
yes
yes
yes
-
-
-
95.5”
20406
yes
yes
yes
yes
-
-
107.5”
20407
yes
yes
yes
-
yes
-
107.5”
20408
yes
yes
yes
-
-
yes
102.5”
Blower Kits with Outward Mounted Idlers
20409
yes
yes
yes
-
-
-
92.25”
20410
yes
yes
yes
yes
-
-
103.75”
20411
yes
yes
yes
-
yes
-
103.75”
20412
yes
yes
yes
-
-
yes
98.5”
A=3 9/32" Kits for Engines with L98 & ZZ4 Aluminum Heads
Kit # Drives
Alternator
A/C
Water Pump
Saginaw Keyway P/S Pump
Saginaw Press Fit P/S Pump
Remote Reservoir Power Steering
Belt Size
20415
yes
yes
yes
-
-
-
95.5”
20416
yes
yes
yes
yes
-
-
107.5”
20417
yes
yes
yes
-
yes
-
107.5”
20418
yes
yes
yes
-
-
yes
102.5”
Blower Kits with Outward Mounted Idlers
20421
yes
yes
yes
-
-
-
92.25”
20422
yes
yes
yes
yes
-
-
103.75”
20423
yes
yes
yes
-
yes
-
103.75”
20424
yes
yes
yes
-
-
yes
98.5”
Type of Accessories
Dayco
6 rib

Matching Alternator Power Steering A/C Units Etc. - See Accessories