Bert LMZ Transmission Kit for 2 Piece Rear Main Seal

The Bert LMZ Transmission Kit for 2-Piece Rear Main Seal is a complete 2-speed racing transmission package engineered for 1955–1985 Chevrolet Small Block V8 engines with a 2-piece rear main seal . Built for IMCA Stock Cars, Modifieds, Dirt Late Models, Hobby Stocks, and other circle track racing classes, this lightweight transmission kit is designed to maximize horsepower transfer, improve throttle response, and deliver dependable race-winning performance. The Bert LMZ features an internal clutch assembly that significantly reduces rotating weight while the upgraded dog-tooth gears provide faster, smoother shifting. Its direct-drive high gear , 600 lb-ft torque capacity , and compact design—approximately 2-5/8 inches shorter than a Muncie transmission —make it an excellent choice for high-performance racing applications. Features Genuine Bert LMZ 2-Speed Racing Transmission Kit Designed for 1955–1985 Chevy Small Block V8 (2-Piece Rear Main Seal) Internal clutch assembly reduces rotating weight New dog-tooth gears for faster, easier shifting Two-speed transmission with reverse Direct-drive high gear IMCA Approved for Stock Car, Modified, and Late Model classes Lightweight aluminum transmission case Approximately 2-5/8 inches shorter than a Muncie transmission Works with standard two-lever shifters Laser-cut CNC-machined steel bellhousing for precise fit Heavy-duty racing components throughout Gear Ratios Low Gear: 2.40:1 High Gear: 1.00:1 (Direct Drive) Reverse: Included Neutral: Yes Specifications Brand: Bert Transmission Model: LMZ Transmission Type: 2-Speed Racing Transmission Application: Chevy Small Block 2-Piece Rear Main Seal 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 Output Style: Slip Yoke Shifter Style: Linkage Operated Bellhousing Included: Yes Shifter Included: No Yoke Included: No Overall Design: Approximately 2-5/8 inches shorter than Muncie-style transmissions Kit Includes Bert LMZ Aluminum 2-Speed Racing Transmission Steel Bellhousing for 2-Piece Rear Main Applications Steel Drive Flange for 2-Piece Rear Main Chevy Engines Bellhousing Bolt Kit Braided Stainless AN-4 Clutch Line Racing Transmission Fluid Installation Hardware Manufacturer Documentation Recommended Applications Ideal for: IMCA Modified IMCA Stock Car Dirt Late Model Hobby Stock Street Stock Circle Track Racing Crate Engine Racing Asphalt Modified Custom Race Cars Compatible with 1955–1985 Chevrolet Small Block V8 engines equipped with a 2-piece rear main seal . Installation Requirements Installation may require: Standard two-lever racing shifter Slip-yoke driveshaft Transmission mount Racing crossmember Racing clutch linkage Proper transmission fluid Professional drivetrain alignment Professional installation is recommended for optimum performance and reliability. Warranty The Bert LMZ 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. Why Choose the Bert LMZ Transmission Kit? The Bert LMZ Transmission Kit is a proven choice for serious circle track racers seeking maximum power transfer and reliable performance. Its internal clutch assembly , lightweight aluminum construction , dog-tooth gear design , 600 lb-ft torque capacity , and direct-drive high gear provide faster acceleration, smoother shifting, and outstanding durability. Complete with a precision-fit bellhousing and installation components, this kit is ready to help your race car perform at its best.