Holley 21-1 LS Acc. Drive Bracket Installation Kit, Standard Alignment
Chevy LS V8
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These Holley accessory drive installation kits provide proper spacing for Holley A/C, P/S & Alt accessory drive brackets, so belts ride at the perfect distance on your particular engine.
A Fitment And Required Components Guide helps you locate and source components and provides other notes and helpful hints to figure your distance. Three easy steps will get you going:
- Step one is to determine your belt alignment based on your crank Pulley position on the engine you have.
- Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both).
- Step three is to see which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part # 425211, 425212, or 425213) is REQUIRED for most applications.
Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.
Item DetailsInstallation Kit, LS Acc. Drive Brackets,
use with STANDARD belt alignment
(SHORT alignment common on Corvette, CTSG , & G8)
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Q & A
In this episode, Project Chevelle takes a big step in its muscle car transformation. It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!
In preparation to transplant a 430hp 383 stroker into Project Chevelle, Zach R. made up a set of plug wires for the car. To keep it nice and tidy they needed to be routed just right, be the perfect length and not distract from the engine!