Holley 20-224 Accessory Drive System Service Component (150 amp Alternator w/bracket kit) - Natural Finish - LT4 Wet Sump

Cast bracket and premium 150 amp alternator with natural finish for LT4 wet sump applications - used in LT Accessory Drive kits #20-220, #20-223, and #20-233

PART# 20-224

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The alternator mount design offers more chassis clearance for LT4 engine swap applications. The kit can be used with existing OE (original equipment) accessories and mounting or in conjunction with the LT4 add-on hydraulic power steering kits, p/n: 20-222, 20-223 & 20-233.

The components have an original equipment look and reliability while relocating the alternator in closer to the engine block for additional chassis clearance. The base kit Holley Part #20-226 is offered with a standard cast finish 105 amp alternator. Our premium kits, Holley #20-224 or #20-224BK offer the choice of a premium 150 amp alternator in cast or black finish.

All three kits provide a complete, cost effective accessory solution for you LT4 crate engine with additional chassis clearance your application will need when compared to the OE option.


  • Provides additional clearance at the alternator while working with original equipment GM accessories and brackets
  • Design allows more chassis clearance for swap applications
  • Original equipment look and reliability
  • LT4 style standard 105 amp and premium 150 amp model alternator options available

Product Attributes

Emission Code5
Manufacturer Part Number20-224
Product TypeAccessory Drive Kits
Part Number20-224



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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