BMW N54/N55/S55 to BMW N63 Adapter Kit

Take your BMW build to the next level with the Guru Autowerks N54 / N55 / S55 to BMW N63 8HP Transmission Adapter Kit, engineered for enthusiasts who want one of the strongest and most refined automatic transmission swaps available for the E&F chassis platform.
 
Designed to pair your BMW N54, N55, or S55 engine with the robust BMW 8HP70, 8HP75, or 8HP76 transmission found behind the twin-turbo N63 V8, this complete swap system brings factory-level drivability with the holding capacity to support serious power. This kit provides a clean installation with the accessories needed to make the conversion far more straightforward than piecing together a swap from scratch.
 
Every component is built with durability and serviceability in mind, featuring steel threaded inserts, precision-machined adapters, and a MIL-A-8625 Type III hard-anodized black finish for long-term corrosion resistance; this package delivers a complete professional-grade transmission conversion.
 
Kit Features
Precision engineered by Guru Autowerks
Fits BMW N54, N55, and S55 engines
Compatible with BMW 8HP70 / 8HP75 / 8HP76 N63-based transmissions
Durable steel thread inserts for repeated service
Integrated starter opening dust covers
Engraved logo and serial numbers
MIL-A-8625 Type III hard-anodized finish
 
Included Components
Bellhousing adapter
Torque converter adapter
Pilot adapter
Starter opening dust covers
Hardware kit with 8.8 and 10.9 zinc-coated fasteners
(4) BMW engine/transmission dowel pins
Red and blue threadlocker
 
For builders looking for OEM smoothness, modern 8-speed performance, and the strength to handle high horsepower, this kit makes the BMW N63-based 8HP swap one of the most desirable upgrades available for your BMW.