4L80e upgrades

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03-16-2017, 10:17 AM

Mike Cordero

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4L80e upgrades

Where to get an affordable??? kit to upgrade a 1997 4L80e? It will be used in a twin turbo 370 LS engine; planning for 800 HP.

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03-16-2017, 10:49 AM

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http://ftiperformance.net/4L80E-4L85...Parts_c157.htm

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03-16-2017, 10:50 AM

82cetuner

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transgo kit hd2. not sure if it comes with a 34 element sprag but get that, a billet forward hub and a 4340 input shaft. also convert the rear shaft to a slip yoke, and do a rollerized output shaft upgrade