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ATK Performance Transmissions

Need a transmission that is powerful enough to support your new High Performance Engine? Look no further than the below selection of our HP Transmissions. Give us a call and we can recommend the perfect fit for your ride!

All of our transmissions are built for your application. In order to best serve you we will need the following information: year, make, model, gear ratio, tire size, vehicle weight and engine/cam specs. By getting this information we can calibrate the transmission to shift where it should and make sure your speedometer is accurate.
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ATK 7204-HP Heavy Duty 4L60E RWD Transmission
ATK 7204-HP Heavy Duty 4L60E RWD Transmission
Our Price (USD): $1,499.00

These 4L60E transmissions are meant to be retrofitted into a hot rod application. Our heavy duty 4L60E features heavy duty clutches and bands, valve body and lube modifications to provide a durable transmission ideal for light trucks and passenger cars. This unit is rated to 450HP.

THIS TRANSMISSION DOES NOT COME WITH A TORQUE CONVERTER OR TRANSMISSION CONTROLLER. CUSTOMER MUST SUPPLY THEIR OWN.

  • SBC/BBC bell housing pattern
  • 2wd application - 4-1/2 splines
  • 2pc case - full bottom bell housing with 2 round holes
  • Grey connector with 13 pins
These transmissions are BUILT IN THE USA! more info
ATK 7205-HP Heavy Duty 4L60E 4x4 Transmission
ATK 7205-HP Heavy Duty 4L60E 4x4 Transmission
Our Price (USD): $1,499.00

These 4L60E transmissions are meant to be retrofitted into a hot rod application. Our heavy duty 4L60E features heavy duty clutches and bands, valve body and lube modifications to provide a durable transmission ideal for light trucks and passenger cars. This unit is rated to 450HP.

THIS TRANSMISSION DOES NOT COME WITH A TORQUE CONVERTER OR TRANSMISSION CONTROLLER. CUSTOMER MUST SUPPLY THEIR OWN.

  • SBC/BBC bell housing pattern
  • 4wd application
  • Removable bell housing with bolt hole at 12 o'clock position
  • Grey connector with 13 pins
These transmissions are BUILT IN THE USA! more info
ATK 1299-HP Heavy Duty 4L60E RWD Transmission
ATK 1299-HP Heavy Duty 4L60E RWD Transmission
Our Price (USD): $1,599.00

These 4L60E transmissions are meant to be retrofitted into a hot rod application. Our heavy duty 4L60E features heavy duty clutches and bands, valve body and lube modifications to provide a durable transmission ideal for light trucks and passenger cars. This unit is rated to 450HP.

THIS TRANSMISSION DOES NOT COME WITH A TORQUE CONVERTER OR TRANSMISSION CONTROLLER. CUSTOMER MUST SUPPLY THEIR OWN.

  • LS (4.8, 5.3, 6.0, etc) bell housing pattern
  • RWD application
  • Removable bell housing
These transmissions are BUILT IN THE USA! more info
ATK 1297-HP Heavy Duty 4L60E 4x4 Transmission
ATK 1297-HP Heavy Duty 4L60E 4x4 Transmission
Our Price (USD): $1,599.00

These 4L60E transmissions are meant to be retrofitted into a hot rod application. Our heavy duty 4L60E features heavy duty clutches and bands, valve body and lube modifications to provide a durable transmission ideal for light trucks and passenger cars. This unit is rated to 450HP.

THIS TRANSMISSION DOES NOT COME WITH A TORQUE CONVERTER OR TRANSMISSION CONTROLLER. CUSTOMER MUST SUPPLY THEIR OWN.

  • LS (4.8, 5.3, 6.0, etc) bell housing pattern
  • 4x4 application
  • Removable bell housing
These transmissions are BUILT IN THE USA! more info