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4L60E Stage I
Up To 400HP
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The EXtreme Automatics Stage I is a great performance build for lightly modified Cars and Trucks. Recommended up to 400HP.


EA Super pump™
Hi Energy 3-4 Clutch Pack
Hi Energy Borg Warner® clutches
Replace All Bushings
Hi Energy Wide Band
New Bonded Rubber Pistons
HD Sun Gear shell
Corvette® servo
Borg Warner® 29 element sprag
4L65 low roller clutch
New solenoids
New internal wiring harness
New Spacer plate
Updated aluminum accumulator pistons
EA Shift Kit
Hi Flow Filter
Performance Internal Specs
6 Month Warranty
*** Core Charge of $350 ***


4L60E Billet Output Shaft
4L60E Core Charge
4L60E Deep Pan (cast)
5 Pinion Planets
C5 Core Charge

Transmissions dyno-tested! Click HERE to see our trans-dyno in action!
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