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Street Race Truck More... The Toolbox
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$3,751.95
Weiand 7581 Street Supercharger Kit 1/2 In. Pitch Drive, Satin Finish
Weiand 7581 Street Supercharger Kit 1/2 In. Pitch Drive, Satin Finish

Weiand 7581 Street Supercharger Kit 1/2 In. Pitch Drive, Satin Finish

Satin, 3 Emission Code, 1/2 Inch Pitch Drive Pulley Type

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Weiand 7581 Street Supercharger Kit 1/2 In. Pitch Drive, Satin Finish
Weiand 7581 Street Supercharger Kit 1/2 In. Pitch Drive, Satin Finish
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We estimate this item will ship on or before January 3rd.
Part # 4257581
$3,751.95
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Weiand to ship this item.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

Finish:
Satin
MFG. Part #:
7581
Emission Code:
3
Drive Pulley Type:
1/2 Inch Pitch
GTIN Code:
090127690628

Info

A true blast form the past. These highly sought after superchargers have been unavailable for years. Weiand is proud to reintroduce them. The case of the 6-71 and 8-71 superchargers have been redesigned for a nostalgic look that will look at home on a cacklefest dragster as well as a new high end build. HORSEPOWER! - Weiand's 6-71 kits are the ultimate statement of power and looks. Pull into the local cruise-in or dragstrip with one of these sticking through the hood and you will get noticed. They're not for the meek however - these supercharger kits are designed to generate 50%+ more horsepower and torque across the rpm range! Weiand's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum boost at lower RPMs. All feature a new case, end-plates, manifold and snout. Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. Kits are engineered to produce 5-7 lbs of boost on the 392 Hemi but are a simple pulley change away from pump gas or hard core racing. All superchargers are built in Weiand's state-of-the-art manufacturing cell and each supercharger is 100% boost tested to help you squeeze out maximum power and efficiency.

  • Chrysler 392 HEMI
  • 6-71 Street Supercharger
  • 1/2" Pitch Drive Satin Finish
  • New Vintage Styling!!!!
  • CNC machined case and rotors
  • Matched gear sets for precise rotor alignment
  • 100% tested
  • 34 Tooth Lower Pulley
  • 38 Tooth Upper Pulley
  • 11% underdrive

Installation Instructions (PDF)

Installation Instructions (PDF)

Some parts are not legal for use in California or other states with similar laws/regulations

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  • After installing the intake manifold and carbs on his 8BA, Heath P. continues on to the fuel and throttle setup. See how he mounts each part while making modifications to complete the install.
  • Do you have carbs sitting on the shelf waiting to be put on? Heath talks about the preparation and parts needed to install a set of Super 9-7 Carbs on his 1949 Flathead 8BA V8 Model A.
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.

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