Bert Gen 2 Short Transmission Kit for 1 Piece Rear Main Seal

The Bert Gen 2 Short Transmission Kit for 1-Piece Rear Main Seal is a complete lightweight racing transmission package designed specifically for 1986-up Small Block Chevrolet engines with a 1-piece rear main seal. Engineered for dirt track, oval track, and circle track racing, this kit combines the proven Bert Gen II short transmission with the essential installation components needed for a reliable, race-ready drivetrain.

The Bert Gen II transmission is renowned for its innovative low rotating mass design, allowing more engine power to reach the rear wheels. In direct drive (high gear), the first and reverse gear assemblies are completely disengaged, eliminating unnecessary rotating weight and reducing wear on internal components. This results in improved throttle response, increased efficiency, and outstanding durability under demanding racing conditions.

Constructed with a lightweight aluminum case, the Bert Gen II Short Transmission is rated to handle up to 600 lb-ft of torque while providing smooth, dependable performance. The included steel bellhousing is compatible with both Small Block Chevrolet (SBC) and Small Block Ford (SBF) engine bolt patterns and adapts to Muncie and Saginaw transmission mounting patterns commonly used in racing applications.

Designed exclusively for competition use, this transmission kit is an excellent choice for Wissota Modifieds, IMCA Modifieds, Midwest Modifieds, Sport Mods, Hobby Stocks, and other circle track racing classes where lightweight construction and maximum drivetrain efficiency are essential.

Features

• Complete Bert Gen II Short Racing Transmission Kit
• Fits 1986-up Small Block Chevrolet engines with a 1-piece rear main seal
• Lightweight aluminum transmission case
• Rated for up to 600 lb-ft of torque
• Innovative low rotating weight design
• First and reverse gears disengage completely in high gear
• Improved power transfer to the rear wheels
• Heavy-duty steel bellhousing included
• Compatible with SBC and SBF engine bolt patterns
• Fits Muncie and Saginaw transmission patterns
• Laser-cut CNC-machined bellhousing
• WISSOTA approved for Midwest Modified competition
• Designed exclusively for racing applications

Specifications

• Brand: Bert Racing
• Manufacturer Part Number: 91606163
• Transmission Type: Racing Manual
• Number of Speeds: 2
• Torque Capacity: 600 lb-ft
• Case Material: Aluminum
• Input Shaft Diameter: 1.0625 inches
• Input Shaft Spline Count: 10
• Output Shaft Diameter: 1.375 inches
• Output Shaft Spline Count: 27
• High Gear Ratio: 1.00:1
• Yoke Style: Slip-On
• Shifter Style: Linkage Operated
• Bellhousing Included: Yes
• Shifter Included: No
• Slip Yoke Included: No

Kit Includes

• Bert Gen II Short Aluminum Racing Transmission
• Steel Bellhousing
• Bellhousing Bolt Kit
• Steel Drive Flange for 1-Piece Rear Main Seal
• Performance Transmission Fluid
• 60-Inch Braided Brake Line
• Straight AN Adapter Fitting
• Transmission Storage Stand
• Installation Hardware

Recommended Applications

Designed for race vehicles equipped with 1986-up Small Block Chevrolet engines featuring a 1-piece rear main seal, including:

• Wissota Modified
• IMCA Modified
• Midwest Modified
• Sport Mod
• Hobby Stock
• Dirt Modified
• Stock Car
• Circle Track Race Cars
• Oval Track Competition Vehicles

This transmission is intended for competition use only and is not designed for street-driven vehicles.

Installation Requirements

Installation may require:

• Compatible racing driveshaft
• Slip yoke
• Racing shifter linkage
• Transmission mount
• Approved racing transmission fluid
• Proper driveline alignment
• Additional installation hardware as required by the vehicle

Professional installation is recommended to ensure maximum performance and reliability.

Warranty

The Bert Gen 2 Short Transmission Kit for 1-Piece Rear Main Seal is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal racing use when properly installed and maintained.