Product Summary

Bert Gen II, 2-Speed Transmission Speeds

    Comes as a Kit

    Key Specs

    MFG. Part #91606160
    BrandSpeedway Motors
    Transmission Speeds2-Speed

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    Speedway Motors 91606160 Details

    Bert Gen II Aluminum Standard Transmission

    This revolutionary design is the lowest rotating weight gear box available.  The mechanism of the first and reverse are totally disengaged from rotation when it's in direct drive (high gear), so there are no wear on those parts.  Reduced rotating weight creates more power to rear wheels that is greatly felt by drivers.  Crate motor and limited engines series benefit the most from this transmission, either on dirt or pavement.

    The second generation transmisson delivered multiple wins in 2020 which proves it is one of the top transmissions on the market today.  Champions like Billy Moyer, Tim Fuller, Chris Maden, Casey Robert, Hunter Peacock, Steve Francis, David Smith, Ray Cook, and Jonathan Davenport use these transmissions and had remarkable success and wins all season long.  Don't deprive your race team, use the second generation Bert transmission to power your Late Model race car!

    • Revolutionary design is the lowest rotating weight gear box available
    • First and reverse are totally disengaged when in high gear
    • Reduced rotating weight creates more power to rear wheels
    • Great for crate motor and limited engine series on either dirt or pavement
    • Available in "Standard" (Muncie Length) version

    Speedway Wissota Chevy/Ford Steel Bellhousing

    These steel bellhousings are WISSOTA approved for Midwest Modifieds and work with both small block Chevy and small block Ford engine bolt patterns.  They allow for use with Muncie/Saginaw style transmissions.

    • SBC and SBF engine bolt patterns
    • Laser-Cut, CNC-finished flange for a perfect fit
    • Adapts either engine to Muncie/Saginaw pattern transmissions including BERT, Brinn, Falcon, etc.
    • Bottom opening for easy access
    • Does NOT have provision for stock style clutch arm
    • WISSOTA approved for Midwest Modifieds
    • Non SFI rated
    • NOT for street use
    • Must be used with a 153 tooth (Chevy) or 157 tooth (Ford) or smaller flexplate/flywheel
    • Made in the USA

    ARP Brinn Flywheel Bolts

    • Under Head Length: 1.25"
    • Thread Pitch 7/16"-20
    • Sold in set of 6

    Speedway Motors Braided Stainless AN 4 Brake Line

    • Braided stainless covering over a Teflon inner liner
    • These are perfect for brake lines, clutch lines and gauge lines
    • These have straight AN4 fittings on both ends

    B&M Conventional Trick Shift ATF Transmission Fluid

    Trick Shift works with all automatic transmissions when a firmer shift is desired (not recommended for electronic controlled transmissions). It can be mixed with stock-type transmission fluids, however, to attain maximum improvement you should use Trick Shift exclusively. Ideal for towing, light trucks, and RV applications as well as racing.

    Speedway Motors Bellhousing Bolt Kit

    The Speedway Bellhousing Bolt Kit has all necessary hardware to install our steel bellhousing (91027001) to back of your motor.


    • 6-3/8"-16 x 1-1/4" Grade 5 bolts
    • 6-3/8" Grade 5 flat washers
    • 6-3/8" Grade 5 lock washers

    Brinn Racing Transmission Stand

    For storage or transporting, this 2-piece tranny stand design makes it easy. Fits Saginaw and others with short tail housing.

    Bert Racing Transmission Replacement Steel Drive Flange

    • For Chevy applications
    • Exploded View Item #7

    Straight -4AN Male to 1/8 Inch NPT Male Adapter Fitting

    A simple, yet effective brake adapter fitting for all your plumbing needs. This straight AN 4 to 1/8" NPT fitting works in a variety of places to solve all your brake plumbing problems.

    • Zinc coated steel construction
    • AN 4 to 1/8" NPT straight fitting


    Speedway Motors 91606160 Specifications

    MFG. Part #91606160
    BrandSpeedway Motors
    Transmission Speeds2-Speed
    Input Shaft Spline Count10
    Output Shaft Spline Count27
    Bellhousing IncludedYes
    Yoke IncludedNo
    Shifter IncludedNo
    Case MaterialAluminum
    Gear Ratio (High)1.00:1
    Notes1-3/8"-10 spline input shaft. 1-3/16"-27 spline output shaft
    Sold in QuantityKit