SKU: 50693556093

Small Block Chevrolet - Gen III/IV - LSA 20-166BK

Sale price$179.95 Regular price$199.95
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Small Block Chevrolet - Gen III/IV - LSA 20-166BKSmall Block Chevrolet Gen III IV LSA If you're looking to swap an LSA or LS engine into your vehicle but your engine didn't come with an alternator bracket or the factory setup is too wide to fit your project, Holley has the answer. The 20 166 Bracket tucks the Alternator in closer toward the engine when compared to the original LSA accessories, giving more clearance where needed. These brackets look truly at home on the LSA engine, so much so that

Small Block Chevrolet - Gen III/IV - LSA

If you're looking to swap an LSA or LS engine into your vehicle but your engine didn't come with an alternator bracket or the factory setup is too wide to fit your project, Holley has the answer. The 20-166 Bracket tucks the Alternator in closer toward the engine when compared to the original LSA accessories, giving more clearance where needed. These brackets look truly at home on the LSA engine, so much so that nobody will realize it didn't come from factory this way.

NOTES: Torque M10 bolt to 36 ft./lbs. When wiring the alternator, install the included 197-400 plug into the alternator. Next, connect the yellow wire to switched voltage that is "on" when the key is in the run position. If the vehicle has a "charge indicator light", the yellow wire can be connected to that circuit.

Features:

  • Compatible with the original LSA damper/pulley and similar aftermarket versions
  • Compatible with all Holley Alternators
  • Notably more clearance to swap applications than other options
  • Compatible with Holley P/N 20-160 compact SD7 A/C kit
  • Compatible with LSA and 2010-15 LS Camaro water pumps
  • OE pulley ratios for optimal accessory performance, allows for larger SC crank pulley
  • Original Equipment look ? Available in Natural and Black Finishes

Specs:

Accessory Drive Style Low-Mount
Application GM LS Engines
Belt Included No
Brand Holley
Damper Style Factory
Emission Code 5
Engine GM Gen III/IV (LS)
Finish Black
Material Cast Aluminum
Power Steering Pump Included No
Product Type Accessory Bracket
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50693556093

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C
Louisville, US
★★★★★ 5
Good quality
Color: Red/Black, Size: 0AWG-25FT Each
Super flexible and good quality for running 2000w inverter.
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Reviewed in the United States on February 10, 2026
M
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Mateo filer
Battle Creek, US
★★★★★ 5
Quality
Color: Red/Black, Size: 0AWG-25FT Each
Great quality.Better than I was expected
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Reviewed in the United States on March 19, 2026
S
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S. Rohleder
Lowell, US
★★★★★ 5
0 Gauge wire 25 feet red,/25 feet black.
Color: Red/Black, Size: 0AWG-25FT Each
It is as advertised, Copper Clad Aluminum (CCA) but will work for very short runs and jumpers instead of eating my solid copper lines.
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Reviewed in the United States on March 5, 2026
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Chad Whitsell
Dallas, US
★★★★★ 5
Great product
Color: Red/Black, Size: 0AWG-25FT Each
Just the amount you need
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Reviewed in the United States on February 11, 2026
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Mr.FixIt
Charlottesville, US
★★★★★ 5
Works great
Great product, good price and fast shipping.
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Reviewed in the United States on December 5, 2025

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