EC1000102 ECOTEC Supercharged or Turbo to Chevy 700R4/TH350/TH400


Materials Included:

(1) Adapter Plate - ECOTEC to Chevy
(1) Crank Adapter - ECOTEC Supercharged & Turbo to Chevy
(1) Torque Converter Drive Plate
(1) Torque Converter Spacer
(3) Threaded Insert 7/16-20
(2) SHCS M12-1.75 x 35
(4) SHCS M12-1.75 x 55
(4) Lock Washer M12-Z
(4) Hex Nut M12-1.75
(6) HCS 3/8-16 x 1-1/4
(6) 7/16-20 x 3/4 Flexplate Bolts
(6) HCS M10-1.25 x 35MM Crank Adapter Bolts
(3) Thick Washer 7/16-Hardened
(3) Flat Washer 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