K20 K24 to BMW ZF 8HP50 8HP70 8HP75 Conversion Kit | ASE

This is a complete conversion kit for your K Series engine. Kit comprised of Billet Flex Plate and a billet engine to transmission adapter plate.

• Billet 6061 Components
  
• Billet Flex Plate
• Billet Motor Adapter Plate
• Complete Hardware Kit
• Pilot Spud adapter
• Hardened Steel Ring Gear
• Precision Dowel Pins for Proper Alignment

Why the BMW small case is a two-piece assembly

On the small case BMW transmissions the smaller torque converter overlaps the area where the starter ring gear needs to sit. A bolt cannot run through the ring gear teeth, and removing enough material to clear it would leave a part prone to cracking. This kit is therefore built as a two-piece assembly, located by a precision machined alignment spud that drops into the center.

You will also need a TCU

This kit is the mechanical engine-to-transmission adapter only. The 8HP is electronically controlled and will not shift without a standalone transmission controller, purchased separately.

Watch the full 8HP range overview

Read the complete 8HP swap kit guide →

Transmission Fitment List:

ZF 8HP 8HP50 8HP51

ZF 8HP50 GA8HP50Z GA8HP50X BMW B37 F-series

ZF 8HP50 GA8HP50Z GA8HP50X BMW B38 F-series

ZF 8HP50 GA8HP50Z GA8HP50X BMW B47 F-series

ZF 8HP50 GA8HP50Z GA8HP50X BMW B48 F-series

ZF 8HP50 GA8HP50Z GA8HP50X BMW B58 F-series

ZF 8HP51 GA8HP51Z GA8HP51X BMW B48 F-series

ZF 8HP51 GA8HP51Z GA8HP51X BMW B58 G-series

ZF 8HP 8HP70 8HP75 8HP76 RWD / AWD xDrive

ZF 8HP70 GA8HP70Z GA8HP70X BMW N57 F-series

ZF 8HP75 GA8HP75Z GA8HP75X BMW N57 F-series (AWD xDrive)

ZF 8HP75 GA8HP75Z GA8HP75X BMW B57 G-series

ZF 8HP76 GA8HP76Z GA8HP76X BMW B57 G-series

ZF 8HP76 GA8HP76Z GA8HP76X BMW B57 G-series (AWD xDrive)

ZF 8HP76 GA8HP76Z GA8HP76X BMW S55 G-series