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LSX/Vortec Water Pump, Polished Aluminum

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Specs
Material Type:
Aluminum
Weight:
11.70
Sold in Quantity:
Each
Finish:
Polished
Inlet Size:
1.54
Shaft Diameter:
0.75
Mounted Length:
7.06
Shaft Length:
0.43
Gasket(s) Included:
Yes
Hardware Included:
Yes
Heater Inlet Size:
0.75
Heater Outlet Size:
0.65
MFG. Part #:
1434623
Pulley Diameter:
5.86
Notes
Clearance from back of pump to engine block mount is .50" Pulley width is 3.50"
LSX/Vortec Water Pump, Polished AluminumLSX/Vortec Water Pump, Polished Aluminum
LSX/Vortec Water Pump, Polished Aluminum

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LSX/Vortec Water Pump, Polished Aluminum

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What's in the Box

Designed specifically for the GM LS Gen III/IV engines, these high flow aluminum pumps are engineered to deliver a faster, higher volume flow of water. Pressure-injected, aluminum alloy pump bodies significantly improve cooling for any street, high performance, or racing application. Featuring a precision cast-iron impeller design and pressure-balanced water passages, these "super pumps" equalize flow and minimize engine hot spots at any speed.

  • Fits 1997-2003 engines
  • 8-hole billet steel hub
  • Heavy-duty 0.750" shaft
  • Shielded-sealed roller ball bearings

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LSX/Vortec Water Pump, Cast Aluminum
                        

Designed specifically for the GM LS Gen III/IV engines, these high flow aluminum pumps are engineered to deliver a faster, higher volume flow of water. Pressure-injected, aluminum alloy pump bodies significantly improve cooling for any street, high performance, or racing application. Featuring a precision cast-iron impeller design and pressure-balanced water passages, these "super pumps" equalize flow and minimize engine hot spots at any speed.

  • Fits 1997-2003 engines
  • 8-hole billet steel hub
  • Heavy-duty 0.750" shaft
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Holley 21-2 LS Accessory Drive Bracket Installation Kit, Middle Align
                        

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.

Holley Accessory Drive Bracket Fitment Matrix (Link)

How to Choose Guide for Holley Accessory Drive Bracket Kits (Link)

Installation Kit for Holley LS Middle Alignment Accessory Drive Bracket Kits (PDF)  

 

Holley 21-1 LS Acc. Drive Bracket Installation Kit, Standard Alignment
                        

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.

Holley Accessory Drive Bracket Fitment Matrix (Link)

How to Choose Guide for Holley Accessory Drive Bracket Kits (Link)

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