Editing Cadillac engine knowledge (section)
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===700R4 / 4L60 / 4L80E=== The 700R4/4L60/4L80E can be good transmissions to use behind the Cadillac 472 and 500, due to the fact that you can run 4.11 gears and not over rev the engine with the overdriven 4th gear. The 4L80E is a good transmission to use on the Cadillac 472 and 500, due to the strength of the 4L80E. The 4L80E normally requires a stand alone controller for automatic shifting and pressure controls. With a price tag of a CPU controller at $600.00 and higher, it's not a inexpensive swap. *The following are for comparison's sake and aren't recommendations, per se. As with any large expenditure, research before spending! For those who want the strength of a 4L80E without the need for an electrical controller, there is the [http://www.transmissioncenter.net/4L80E.htm Quadzilla] for around $3400.00. The [http://www.transmissioncenter.org/compushift_4l60e_4l80e.htm Compushift ECM] (Electronic Control Module) for the GM 4L60E/4L80E costs about $1150.00. A less expensive controller is the [http://www.optishift.com/ Optishift]; cost for it is around $600.00. For about half that amount, the [http://www.msgpio.com/manuals/mshift/4L60e.html MegaShift™ Transmission Controller] is available. It requires assembly and some knowledge of electrical circuitry, etc.
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