Mazda RX7 FC to FD bell housing adapter plate

Billet FC to FD bell housing adapter.

CNC machined in-house from aircraft grade aluminium.

This allows FC (S4/5) 13B turbo bell housings to bolt up to FD (S6/7/8), and Rx8 5 speed transmissions, enabling the use of a later model Rx7 or Rx8 gearbox in an earlier application.

No input shaft shortening required, no other modifications required – this is a bolt on conversion.

Double lip oil seal and high tensile bolts are included.

FC (and earlier) bell housing – 141mm height. FD & Rx8 5 speed bell housing – 156mm height Height difference = 15mm Adapter thickness = 15mm