Product Summary

Brinn, 2-Speed Transmission Speeds

    Comes as a Kit

    Key Specs

    MFG. Part #91606161
    BrandSpeedway Motors
    Transmission Speeds2-Speed

    Need To Know

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    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 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

    Brinn Racing Transmission 

    We keep this Brinn Racing Transmissions in stock. With the low rotating weight, internal clutch and smooth shifting, they are hard to beat. Bolts in place of stock GM transmissions. Crank drive flange not included.

    • The input and output shafts are gundrilled for reduced weight
    • Superior dog clutch design provides the most durability and the smoothest shifting available
    • Low cost - eliminates clutch assembly and throwout bearing assembly
    • Dog clutch and detent design eliminate the need for special shifters
    • Six inch long, 27 tooth output shaft spline that will accept any length yoke
    • SAE 10 tooth input shaft spline
    • Feed line is 1/8"-27 NPT (fitting not included)
    • Low gear ratio: 1.88:1
    • Reverse gear ratio: 2.29:1
    • Shafts and gears are cryogenically treated

    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.

    B&M Conventional Trick Shift ATF Automatic Transmission Fluid

    Trick Shift ATF was originally developed by B&M for racing applications. It’s become so successful that it’s the most popular high performance fluid on the street also. A scientific blend of foam inhibitors, pressure agents and shift modifiers that will provide extended transmission life and drastically improved shift feel. Trick Shift is the easiest way to measurably improve the transmission performance of your vehicle.

    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 Small Block Chevy Steel Drive Flange, 1 Piece

    • 1 Piece 
    • Fits 1986-Up engines

    Speedway Motors Straight -4AN Male to 1/8 Inch 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 Braided Stainless AN 60 Inch Brake Line

    • Braided stainless covering over a Teflon inner liner. 
    • These are perfect for brake lines, clutch lines and gauge lines.
    • These have straight AN3 or AN4 fittings on both ends.



    MFG. Part #91606161
    BrandSpeedway Motors
    Transmission Speeds2-Speed
    Input Shaft Spline Count10
    Output Shaft Spline Count27
    Bellhousing IncludedYes
    Yoke IncludedNo
    Shifter IncludedNo
    Case MaterialAluminum
    Gear Ratio (Low)1.88:1
    Gear Ratio (High)1.00:1
    Gear Ratio (Reverse)2.29:1
    Sold in QuantityKit