GM Performance 8-Speed 4×4 Automatic Transmission – Modified

Description

GM Performance 8-Speed Automatic 8L90 – Blackbridge Engineering 4×4 Edition for Mark X

Take your Mark X’s performance to the next level with the GM Performance 8-Speed Automatic 8L90 transmission, expertly modified by Blackbridge Engineering to be 4×4-ready. This transmission is purpose-built to seamlessly bolt into your Mark X, perfectly integrating with our custom Mark X transfer case and GM LT1 engine. Offering smooth, high-performance shifting and rugged durability, this 8-speed automatic is designed for those who demand both power and off-road capability.

Key Features:

• 4×4-Ready Modification: Blackbridge Engineering has modified the 8L90 transmission for full 4×4 compatibility, allowing you to harness the power of GM’s performance transmission across a variety of terrains with confidence.
• Seamless Integration: Engineered to bolt directly into your Mark X with our Mark X transfer case and LT1 engine, this transmission eliminates the need for major modifications. Enjoy a factory-like fit and function with maximum reliability.
• High-Performance Shifting: The 8L90 delivers smooth, precise gear changes, with eight well-spaced ratios to optimize both acceleration and fuel efficiency, whether you’re cruising on the highway or tackling tough off-road trails.
• Rugged Durability: Built to handle the high torque of the LT1 engine, the 8L90’s robust design ensures it can handle the most demanding conditions, providing the strength and durability you need for both street and off-road driving.

Transmission Specs:

• Type: 8-speed automatic transmission
• Ratios:
  • 1st: 4.56
  • 2nd: 2.97
  • 3rd: 2.08
  • 4th: 1.69
  • 5th: 1.27
  • 6th: 1.00
  • 7th: 0.85
  • 8th: 0.65
• Max Torque Capacity: 664 lb-ft
• Construction: Lightweight aluminum case with heavy-duty internal components for maximum strength

Ideal for:

• Off-Road Enthusiasts: Modified to be 4×4-ready, this transmission is perfect for those looking to take their Mark X off-road, providing exceptional control and power delivery across rough terrains.
• Street Performance: With eight gears delivering smooth transitions and improved fuel efficiency, the 8L90 is just as at home on the street as it is in the dirt, making it a versatile choice for a wide range of driving styles.
• Custom Builds: Perfect for Mark X builds paired with the LT1 engine and Blackbridge’s transfer case, creating a powerful and fully integrated drivetrain solution.

Compatibility:

• Designed for seamless integration with the GM LT1 engine and Blackbridge’s custom Mark X transfer case, offering a true bolt-in solution for all Mark X models.

Why Choose Blackbridge Engineering’s 8L90 for Mark >collection.