All EXtreme Automatics™ builds are dyno-tested!

***With the exception of the TurboClutch model***
Click HERE to see our trans-dyno in action!
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EA 4L60E
4L60E|4L65E|4L70E

***Please read descriptions in their entirety. Images are for illustrative purposes and may NOT ACCURATELY depict each product. It is your responsibility to be well informed before ordering. Please read our Terms of Use for specifics.***

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EXtreme Automatics™ 4L60E | 4L65E | 4L70E

EXtreme Automatics™ has been building 4L60Es for 10 years. Extreme Automatics™ 4L60E has been featured in GM High Tech and many other national magazines. The EXtreme Automatics™ 4L60E has undergone many changes over the years. We have found the one build that has been very successful for many 9 second runs in the F-Body. The most reliable 4L60E built. Our 4L60E can handle an honest 700HP. Our 4L60E is perfect for a Street/Race car.



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4L60E Stage 1 • Up to 400HP

The heart of the EA™ 4L60E is the Valve Body calibration. Great parts mean nothing if you cant keep the clutches in the transmission. We completely rebuild the valve body with new hard anodized oversize valves in the areas that we know there is a problem. This is what make the EA™ 4L60E so reliable. We completely eliminate the 1890 code, 3/4 clutch failure due to inadequacy in the valve body. Shifts are quick and clean. Our 4L60s don't bang!!! This trans also works well in 2wd/4wd trucks.

  • Build
  • Only Select cores are used
  • Case is Media Blasted and race Prepped
  • All New Seals and Gaskets
  • EA Exclusive Valve Body and Spacer Plate
  • New AC Delco® Input Drum and Shaft
  • Sleeved Input Drum
  • Cryoed Input Drum
  • Input Shaft Sealed to drum to eliminate cross leaks
  • All New Bushings (Extra Wide where needed)
  • All New Torrington® bearings
  • Pinless accumulators
  • Billet anchor pin
  • Beast® Sun Gear Shell
  • New AC Delco® Reverse drum
  • Planets have all New Pinion Thrust Washers
  • Pump Parallel Decked
  • New AC Delco® 13 vane pump assembly
  • Billet Pump Rings
  • Multi Directional 13 plate Metallic Fiber 3/4 clutch pack
  • Hi Energy Forward Clutch
  • Hi Static Low rev Clutch
  • HD Over run sprag
  • HD Low roller Clutch
  • Wide Metallic Fiber Band
  • Billet 2nd Servo
  • Billet 4th Servo
  • $400 Lifetime Freshen up
  • 1 Year warranty
  • Core Charge

Stage 1 4L60E • Options

  • Core Charge $200
  • C5 Core Charge $750
  • Billet Output Shaft $695
  • Cast Deep Pan $125
  • GM 5 Pinion Planets $495 (4L65E Upgrade)
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$1595 + Shipping  • Buy Now

4L60E Stage 2 • Up to 700HP

  • Build
  • EA Super pump™
  • Multi Parallel 14 plate 3-4 Clutch Pack
  • Multi Parallel clutches other areas
  • Replace All Bushings
  • Exclusive EA™ 100% Carbon Extra Wide Band
  • New AC Delco® Reverse Drum
  • Sealed input drum and Sleeved
  • New Bonded Rubber Pistons
  • Beast® Sun Gear shell
  • Torrington® Bearing in Lieu of Thrust washers
  • EA™ Billet 2nd Srevo
  • Pinless Accumulators
  • Borg Warner® 29 element sprag
  • 4L65 low roller clutch
  • New solenoids
  • New internal wiring harness
  • New Spacer plate
  • EA™ Reconditioned Valve body
  • Lock-up Modification
  • EA™ Shift Kit
  • Hi Flow Filter
  • Performance Internal Specs
  • 1 Year Warranty
  • $400 lifetime freshen up

Stage 2 4L60E • Options

  • Core Charge $200
  • C5 Core Charge $750
  • Billet Output Shaft $695
  • Cast Deep Pan $125
  • GM 5 Pinion Planets $495 (4L65E Upgrade)
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$1895 + Shipping  • Buy Now

4L60E Stage 3 • Up to ...HP

The Stage 3 is the HD 4L65E/4L70E. This model works great from the daily driver to the weekend warrior. Shifts are firm but not violent. This is a super tough transmission for Street and Strip or Tow vehicle. This model is perfect for Hi HP heavy vehicles cars or trucks. Great Choice for Escalade, Tahoe, Suburban & Blazer.

  • Build
  • EA Super pump™
  • Multi Parallel 14 plate 3-4 Clutch Pack
  • Multi Parallel clutches Other
  • Replace All Bushings
  • Exclusive EA 100% Carbon Wide Band
  • Sealed input drum and Sleeved
  • New Bonded Rubber Pistons
  • Beast® Sun Gear shell
  • Torrington® Bearing in Lieu of Thrust washers
  • EA™ Billet 2nd Srevo
  • Billet 4th Gear Servo
  • Pinless Accumulators
  • Borg warner® 29 element sprag
  • 4L65 low roller clutch
  • AC Delco® 5 Pinion Planets
  • New solenoids
  • New internal wiring harness
  • New Spacer plate
  • EA™ Reconditioned Valve body
  • Lock-up Modification
  • EA™ Shift Kit
  • Hi Flow Filter
  • Performance Internal Specs
  • 1 Year Warranty
  • $400 lifetime freshen up
  • *** Core Charge or $450 Required***

Stage 3 4L60E • Options

  • Core Charge $200
  • C5 Core Charge $750
  • Billet Output Shaft $695
  • Cast Deep Pan $125
  • GM 5 Pinion Planets $495 (4L65E Upgrade)
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$2495 + Shipping  • Buy Now

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