CA201 1942-1948 Cadillac 346 Flathead w/Hydra-matic to Chevy Automatic V8 Transmission

*This kit will only fit the 346-Cadillac Engine that originally had a Hydra-matic Transmission.

Materials Included:

(1) Adapter Plate-Inner - Cadillac Flathead to Chevy Auto.
(1) Adapter Plate-Outer - Cadillac Flathead to Chevy Auto.
(1) Crank Adapter(1) Torque Converter Drive Plate
(6) SHCS 7/16-20 x 3
(6) FHSCS 3/8-16 x 1-1/4
(6) SHCS 7/16-14 x 3
(6) 7/16-20 x 3/4 Flexplate Bolts
(4) Dowel Pin .621 x 1
(6) Stud 3/8-16 x 1-3/4 Z
(6) Hex Nut 3/8-16 YZ 8
(1) Starter
(1) Starter Block – Olds/Cadillac applications
(2) SHCS 7/16-14 x 1-1/4
(3) 7/16 H Extra Thick Washer
(3) 7/16 Flat Washer

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 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