GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4l65, 4l70?

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Old Sep 30, 2009 | 02:50 PM
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Default 4l65, 4l70?

What would you need to upgrade a stock 4l60e into a 65e or 70e?
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Old Oct 7, 2009 | 04:03 PM
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anyone?
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Old Oct 7, 2009 | 08:17 PM
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What are you attempting to accomplish? Plainly speaking... what level of strength & reliability are you looking to reach?

Courtesy of PT's brother/sister site:

-5 pinion planetary gearsets
-hardened/shot peened turbine, stator and output shafts
-hardened sun gear
-hi-energy clutch packs
-extra clutch in 3-4 pack
-recalibrated valvebody
-heavy duty low/reverse roller clutch
-factory deep pan



I will tell ya that some of the 65E's parts could stand to be upgraded. BTW, I believe the 70E has an input speed sensor.
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Old Oct 8, 2009 | 01:50 PM
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Well im planning to do the 6.2 swap in my rcsb and i was hoping maybe the 65e or the 70e would be able to hold up with what I have planned
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Old Oct 8, 2009 | 02:28 PM
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what are you planning on doin? power levels?
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Old Oct 14, 2009 | 11:02 PM
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Well i wanna swap out my 5.3 for the L92(6.2) w a cam
something kind of like daryn c has
so i need something that can hold up about 450 rwhp
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