Strong OD automatic ?

[Steve Chryssos]

OK - TCI makes a controlling unit... $983.33
Their 4L80E is listed at $3,470.13
Torque convertor is listed at $614.43
OUCH! Total = $5,067.89
Damn... havent seen prices that high sinse I looked at Hemi carbs

Those are all retail prices. For example, I sell the TCI controller for $659.95. Early Impalas came with tiny powerglides, so you might have some tunnel work to do. 570ftlbs of toruq is in line with the factory rating of a 4L80E. It's about the safe limit of a built 4L60E. The computer is the same either way. A good junkyard connection can net you a 4L80E for under $500. We bought a Hughes 4L80E for $3500 which includes a $1000 core charge. Then we found a junkyard core for $300 and sent it back. So $2800 plus shipping. Cost is largely dependant on engine output. There is simply no cheap way to harness 800 ft-lbs or more, but at 550 ft-lbs, you have options.

$2800.00 Trans
$ 659.95 Computer
$ 697.00 Converter
$4197.00 Total