RB25DET, RB26DET to 350Z/370Z Adapter Plate

For the Following Applications:
This adapter plate from Collins Performance Technologies provides a high-quality, precision solution for mating a Nissan RB family engine (RB25DET or RB26DETT) to the 6-speed CD-series transmissions used in the 350Z (Z33) and 370Z (Z34). It’s engineered to streamline the engine-to-transmission interface and makes the swap significantly cleaner and more reliable.

Engine:
-RB20
-RB25
-RB26

Transmission:
-Nissan 350Z transmission Revision CD001
-Nissan 350Z transmission Revision CD005
-Nissan 350Z transmission Revision CD006
-Nissan 350Z transmission Revision CD008
-Nissan 350Z transmission Revision CD009
-Nissan 370Z transmission Revision CD009
-Nissan 370Z transmission Revision JK40C

 What is Included:
-RB26DETT/RB25DET to 350Z/350ZHR/370Z Adapter Plate
-Dowel Pins
-RB Engine Side Bolt Kit
-Transmission Side Bolt Kit

It is necessary to do the following before bolting the transmission to the adapter plate:

-Mill the bell housing down approximately 14mm in order to get the proper clutch spline engagement with the 350Z input shaft **(YOU ONLY NEED TO DO THIS STEP IF YOU DO NOT HAVE THE COLLINS CUSTOM FLYWHEEL)** If you purchase the Collins flywheel, you will not have to mill the bellhousing down**
-Run the shorter Pivot ball from the 2006+ CD009 Nissan 350Z transmission.
-Purchase our Clutch Release Bearing Adapter for the RB25/26 - We also have a partial swap kit for this adapter that includes the clutch release bearing
-Make sure you have the proper amount of clearance inside the transmission area so that the starter gear can properly plunge-out and engage with the flywheel. (Cut/grind a small area to make the gear fit into the transmission)

This kit works with any RB starter.

Instructions

If you’re performing an engine swap, the interface between the engine and transmission is one of the crucial challenges. Using a purpose-built adapter plate like this one means you’re getting a part that’s engineered for alignment, durability and performance — rather than relying on generic plates or heavy custom fabrication. For the RB and Z-chassis swap market in particular, this addresses a known gap and ensures your build’s drivetrain geometry is correct from the get-go.

*Any questions or to check if in stock please give us a call at 803-792-7189*