BU702 1964-1966 Buick 401/425 Nailhead to Chevy Automatic V8 Transmission (w/ small-hole Flexplate)

Materials Included:

(1) Adapter Plate - Buick Nailhead to Chevy
(1) Crank Adapter-1964-66 Buick 401/425 Nailhead to Chevy Auto.
(1) Torque Converter Drive Plate
(1) Flexplate - Small Center
(1) 166W Tooth Ring Gear
(1) Balance Weight – Buick 401/425 to Chevy Auto.
(6) SHCS 7/16-20 x 3
(4) SHCS 7/16-14 x 1-3/4
(2) SHCS 7/16-14 x 1-1/4
(6) 7/16-20 x 3/4 Flexplate Bolts
(2) Dowel Pin .621 x 1
(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. 

Customers are responsible for throttle position signal provisions. Check out US Shifts options for TPS Kits. 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