EC101 ECOTEC Naturally Aspirated (i.e. Olds Alero) to Chevy Automatic Transmission (700R4/TH350/TH400)

$895.00

Materials Included:

(1) Adapter Plate - ECOTEC to Chevy
(1) Crank Adapter
(1) Torque Converter Drive Plate
(2) SHCS M12-1.75 x 35
(4) SHCS M12-1.75 x 55
(4) LOCK WASHER M12-Z
(6) HCS 3/8-16 x 1-1/4
(6) 7/16-20 x 3/4 Flexplate Bolts
(6) SHCS M10-1.25 x 30
(4) HEX NUT M12-1.75
(3) EXTRA THICK HARD WASHER x 7/16
(3) FLAT WASHER x 7/16


Are you planning on using a modern a GM 4L60E, 4L65E, and 4L70E (2008 and earlier only) or GM 4L80E and 4L85E transmission with this kit? By adding a US Shift Quick 4 stand-alone transmission controller you will save $100 dollars off of the cost of your Speed Gems adapter kit.

We have additional options from US Shift. Please give us a call or email if you're not seeing what you need!


*Matching our adapter kits with your engine can be tricky. If you are unsure of which kit to purchase for your engine, please call customer service at (763) 767-4480. Speed Gems is not responsible for return shipping costs of mismatched kits.

Installation Instructions