Mechanic holding a silver transmission ready for installation under a vehicle in an auto repair shop, with another technician working on the car in the background.

PERFORMANCE TRANSMISSIONS

Parts | Call us at: (877) 396-0225

Complementing your Chevrolet Performance crate engine with a factory-engineered new or remanufactured performance transmission is a cinch with our comprehensive lineup of automatic transmissions, torque converters and installation kits. Each transmission kit is engineered with factory-matched torque capacity ratings, helping ensure the transmission you purchase will stand up to the power of your engine.

4L85 automatic transmission displayed at an angle, highlighting its exterior design and structure, suitable for performance upgrades and repairs in various vehicles.

SuperMatic 4L85-E Four-Speed Transmission

  • Modified valve body for firmer shifts than production 4L85-E
  • Direct bolt-on for Gen I Small-Block and all Big-Blocks
  • Does not include torque converter
  • Includes additional clutch plates
  • Gear ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75
  • Tested up to 690 lb-ft of torque

NOTE: Use with electronic controller P/N 19332780 for carbureted and RamJet applications. Use with electronic controller P/N 19302410 with Chevrolet Performance LS fuel-injected applications. Torque converter not included.

Part Number – 19300175

WAS $5,664.25  

NOW $4,655.25

6L80-E six-speed automatic transmission displayed with components including wiring harness and connectors, designed for enhanced vehicle performance and efficiency.

SuperMatic 6l80-E Six-Speed Transmission W/ 2400-2800k Stall Converter

  • Electro/hydraulic controls with clutch-to-clutch shifting
  • Output torque rating: 650 lb.-ft.
  • Gear ratios: 1st: 4.02, 2nd: 2.36, 3rd: 1.53, 4th: 1.15,
    5th: 0.85, 6th: 0.67
  • Does not include dipstick
  • Includes production vent tube assembly & truck-style production oil pan
  • Kit includes controller and harness, with calibrations for street and track; harness also includes paddle-shift connection
  • Kit includes transmission bulkhead connector that supports aftermarket gear indicator displays, electronically controlled shifters and more
  • Chevrolet Performance-specific design includes provisions for an aftermarket transmission cooler, including -6AN fittings

Part Number – 19366637

WAS $6,215.95  

NOW $4,940.68

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Sherwood Park Chevrolet