BU1003 1964-66 Buick 401 & 425 Nailhead to Small Block Chevy Manual

*Please ensure your crankshaft pilot bore measures 1.70"

Materials Included:

(1) Bell Housing 
(1) Flywheel balanced for 401/425
(1) 166 Tooth Ring Gear
(1) Pivot Ball
(1) Pilot Bushing and Adapter
Hardware needed for install

Optional:

(1) Clutch Kit
(1) Throw Out Bearing
(1) Clutch Fork and Retainer
(6) Pressure Plate Bolts

*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