GM 6L80 6-Speed Automatic Transmission

GM 6L80 6-Speed Automatic Transmission

Upgrade your GM vehicle or performance project with the GM 6L80 6-Speed Automatic Transmission. Developed as a modern replacement for earlier GM four-speed automatic platforms, the 6L80 combines six forward gears with electronic control and overdrive to provide strong acceleration, smooth shifting, and comfortable highway cruising.

The 6L80 is particularly popular in GM vehicles equipped with modern V8 engines, including LS and LT-family applications. Its six-speed gearing makes it a strong choice for performance builds, daily-driven vehicles, engine swaps, and custom powertrain projects.

Compatible Chevrolet Applications

Depending on the exact model year, engine configuration, drivetrain, and transmission specification, compatible Chevrolet applications may include:

• Chevrolet Camaro
• Chevrolet Corvette
• Chevrolet Silverado 1500
• Chevrolet Avalanche
• Chevrolet Tahoe
• Chevrolet Suburban
• Chevrolet TrailBlazer SS
• Chevrolet Express
• Chevrolet Caprice
• Other compatible Chevrolet applications

Compatible GMC Applications

Compatible GMC applications may include:

• GMC Sierra 1500
• GMC Yukon
• GMC Yukon XL
• GMC Savana
• GMC Envoy
• GMC Denali-based applications
• Other compatible GMC vehicles

Cadillac Applications

The 6L80 was also used in various Cadillac applications, including compatible versions of:

• Cadillac Escalade
• Cadillac Escalade ESV
• Cadillac Escalade EXT
• Cadillac CTS
• Cadillac STS
• Other compatible Cadillac performance applications

Pontiac & Other GM Applications

Depending on configuration, related applications may include:

• Pontiac G8
• Pontiac G8 GT
• Pontiac G8 GXP
• Other compatible GM rear-wheel-drive performance vehicles

Popular Swap Applications

The GM 6L80 is frequently considered for:

• LS engine swaps
• LT engine swaps
• Chevrolet Camaro builds
• Corvette projects
• Chevrolet C10 and C/K builds
• Silverado performance projects
• Classic muscle cars
• Street rods
• Restomod vehicles
• Performance trucks
• Custom GM builds
• Pro-touring projects
• High-performance street cars

Transmission Highlights

• 6-speed automatic transmission
• Electronically controlled
• Six forward gears
• Overdrive gearing
• Torque-converter lockup
• Designed for modern GM powertrains
• Strong torque-handling capability
• Popular LS/LT swap transmission
• Excellent aftermarket and performance support
• Suitable for street and performance applications

Ideal For

The GM 6L80 6-Speed Automatic Transmission is an excellent option for customers upgrading a compatible GM vehicle or building a custom performance project. Its six-speed gearing provides more ratios than traditional four-speed GM automatics, making it attractive for both acceleration and highway cruising.

It is particularly popular for LS and LT-powered vehicles, modern GM replacements, classic muscle cars, trucks, restomods, and pro-touring builds.