The Bert Gen 2 Standard Length Transmission Kit for 2-Piece Rear Main Seal is a lightweight, race-proven 2-speed direct-drive transmission package engineered for circle track racing, dirt modifieds, and limited-engine classes. Designed to bolt directly to Small Block Chevrolet (SBC) and Small Block Ford (SBF) engines with a 2-piece rear main seal, this kit delivers exceptional durability, quick acceleration, and reduced rotating mass for maximum power transfer to the rear wheels. The standard-length version matches the dimensions of a traditional Muncie transmission, making it a popular choice for race car conversions and replacements.
The revolutionary Bert Gen II transmission features an innovative internal design where first gear and reverse are completely disengaged while in direct drive (high gear). This significantly reduces rotating weight, minimizes internal wear, and improves throttle response and horsepower delivery. Rated for 600 lb-ft of torque, the aluminum-case transmission is built to withstand the demands of competitive racing while providing consistent and reliable performance on dirt or asphalt tracks.
Features
- Bert Gen II Standard Length 2-Speed Racing Transmission
- Designed for 2-Piece Rear Main Seal Engines
- Fits Small Block Chevrolet (SBC) and Small Block Ford (SBF)
- Standard (Muncie) Length Case
- Lightweight Aluminum Construction
- Rated for 600 lb-ft of Torque
- Direct-Drive High Gear (1.00:1)
- First and Reverse Fully Disengage in High Gear
- Reduced Rotating Mass for Increased Power Transfer
- Laser-Cut CNC-Machined Bellhousing Flange
- Bottom Inspection Opening for Easy Service
- WISSOTA Approved for Midwest Modified Racing
- Ideal for Dirt, Asphalt, Crate Motor, and Limited Engine Racing
Gear Ratios
- Low Gear: Racing Low Gear
- High Gear: 1.00:1 Direct Drive
- Reverse: Included
Specifications
- Brand: Bert Racing
- Model: Gen II Standard Length
- Transmission Type: 2-Speed Manual Racing Transmission
- Application: Circle Track Racing
- Engine Compatibility: SBC & SBF (2-Piece Rear Main Seal)
- Torque Capacity: 600 lb-ft
- Case Material: Aluminum
- Transmission Length: Standard (Muncie Length)
- Input Shaft Diameter: 1.0625 in.
- Input Shaft Spline Count: 10
- Output Shaft Diameter: 1.375 in.
- Output Shaft Spline Count: 27
- Bellhousing Included: Yes
- Shifter Included: No
- Yoke Included: No
- Shifter Style: Linkage Operated
- SFI Certification: Non-SFI Rated
Kit Includes
- Bert Gen II Standard Length Aluminum Transmission
- Steel Bellhousing
- Bellhousing Hardware
- Hydraulic Clutch Line
- Transmission Installation Components
- Installation Instructions
Recommended Applications
Ideal for:
- IMCA Modifieds
- WISSOTA Modifieds
- Dirt Modified Race Cars
- Asphalt Modifieds
- Crate Engine Racing
- Limited Engine Classes
- Street Stock Race Cars
- Hobby Stock Race Cars
- Custom Circle Track Builds
Compatible with Small Block Chevrolet and Small Block Ford engines equipped with a 2-piece rear main seal.
Installation Requirements
Installation may require:
- Racing shifter assembly
- Slip-yoke driveshaft
- Hydraulic clutch system
- Racing transmission mount
- Compatible clutch assembly
- Appropriate driveshaft length
- Racing transmission lubricant
Professional installation is recommended to ensure proper drivetrain alignment and peak racing performance.
Warranty
The Bert Gen 2 Standard Length Transmission Kit for 2-Piece Rear Main Seal is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal racing use and proper installation.



