6-71 Supercharger Kit 1955-86 Small Block Chevy Drive Pitch: 1/2"

Name: 6-71 Supercharger Kit 1955-86 Small Block Chevy Drive Pitch: 1/2"
Brand: WEIAND
SKU: 925-7482P
Price: 3989.99 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

6-71 Superchargers - Chevrolet Small Block

1955-86 Small Block Chevy
Drive Pitch: 1/2''
10.5% Underdrive Ratio
Polished Finish
34 Tooth Lower Pulley
38 Tooth Upper Pulley

Note: This kit includes two extra 1/8" NPT plugs. Your manifold may have two 1/8" NPT ports tapped in the back of it. These are vacuum / boost ports that can be usedfor a boost gauge, boost reference power valves, or any other items that need tobe connected to a boost / vacuum source. If these ports are not needed, usethe included plugs to block these ports.

Pop Off Valve Installation Guide

More than 40 Years in the Supercharger Business

Weiand superchargers can be found in all aspects of racing, from tractor pulls to the quarter mile. When you pull into your local cruise-in or dragstrip with one of these 6-71 superchargers sticking through the hood you are sure to be noticed. Producing 50%+ more horsepower and torque, the 6-71 supercharger is not just your average supercharger! All 6-71 kits are available with either the traditional 1/2" pitch (one piece snout) or the extra tough 8mm belt configurations to suit your needs.

Got a HEMI? Weiand has nostalgic supercharger kits for early Chrysler Hemi's (331, 354 or 392). Hemi kits have the traditional 1/2" pitch drive and early one piece snout.

Supercharger Features:

Roots-type two-lobe helical rotor eliminates flex
Rotor setup closes tolerances for maximum boost efficiency
Equal distribution of fuel/air mixture optimizes HP gains
Mounts with standard distributor setup
Heavy-duty bearing plates eliminate cracking
Rear plates use premium sealed ball bearings
Front bearings lubricated by oil bath
Front rotor shaft seals are double-lipped with PTFE
Kits are designed to produce 10-12 lbs of boost on small blocks and 5-7 lbs of boost on big blocks but are a simple pulley change away from pump gas or hard core racing.

6-71 Street Supercharger Kits Include:
Polished or Satin 6-71 Supercharger with gears and bearing plates
Supercharger Intake Manifold
2-4V Carburetor Adapter
Supercharger to Manifold Gasket
Carburetor Adapter to Supercharger Gasket
3" Gilmer Belt, pulleys, brackets, idler, and necessary fasteners
Note: Kits do not allow enough clearance to fit a GM HEI distributor. Fuel lines not included.