Black Widow 6L80/90E (Stage 1 750 Horsepower) (WHOLESALE)

The 6L80/E90 Stage 1 from Next Level Engine & Transmission is built for performance-driven applications requiring both reliability and serious power. Rated to handle up to 750 horsepower, this transmission is ideal for tuned street trucks, performance cars, and daily-driven builds that demand smooth, consistent shifting and lasting durability.

Each transmission is hand-built by a master technician with precision and care. Every unit is measured, tested, and assembled to strict performance standards. Once complete, the technician personally signs the transmission — a lasting mark of pride and craftsmanship that represents the Next Level standard.

The 6L80/E90 Stage 1 offers exceptional holding capacity, improved fluid flow, and enhanced shift quality — making it the perfect balance of performance and reliability for high-powered street or towing applications.

Recommended For

• Performance builds up to 750 HP
  
• Street-driven, tuned, and mild competition setups
  
• Trucks or cars requiring strong, smooth shifting
  
• Drivers who want premium performance with proven durability
  
• This Transmission Features The Following:

Tear Down & Cleaning:

• The transmission is fully disassembled, and all soft, wear-prone parts are replaced with brand-new, high-quality components.
  
• Cases and housings are deep-cleaned in a 190° hot wash system to remove all residue and contaminants.
  
• Hard parts are hand-inspected and cleaned individually, with any questionable components replaced before reassembly.
  
• The case is thoroughly checked for cracks, wear, or damage to ensure a flawless foundation for the build.
  

Upgraded Internal Components:

• Billet Torque Converter
• Borg Warner Frictions
• Trans-Go tow and pro kit with all valve body updates
• Oversized PR valve
• New Steels
• Blueprinted Pump
• CNC bell housing
• New seals and gaskets
• High flow filter
• Next Level Custom Paint

Warranty:

Includes: a 2-year / unlimited miles warranty. 

Note:

Next Level Engine & Transmission reserves the right to alter, update, or substitute build components and specifications at its discretion, without prior notice or obligation. These adjustments may be made to help customers meet specific timelines while maintaining the highest standards of quality, durability, and efficiency.

Returns:

*We accept returns within 10 days of receipt, as long as the transmission is in like-new condition and has not been installed. Please note that a 25% restocking fee applies, and customers are responsible for return shipping costs