Product Summary

396, 402, 427, 454, 3 Emission Code

    Key Specs

    MFG. Part #7741-1

    Need To Know

    This Product Will Ship Free

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy


    Weiand Pro Street supercharger kits are engineered to give you a 25% to 40% gain in power - while maintaining outstanding streetability. All Weiand blowers feature 100% new parts (no remanufactured components), including new thick-wall cases and rotors to eliminate high-RPM flex. This low profile kit is 2.00" lower overall than the 6521-1 kit.

    • PTFE rotors
    • Long Nose
    • 10 Rib Pulley Drive
    • 7" Lower Pulley
    • 3.48" Upper Pulley
    • 100% tested
    • 25-40% Gain Over Stock


    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


    MFG. Part #7741-1
    Emission Code3
    Drive Pulley Type10-Rib
    GTIN Code090127589267