To build up an RB23 from a RB20 I have been told that you need the RB25 Crank and Rods but what pistons are needed for this conversion?
The reason I ask is that I intend to do this build up. It's different so I thought why not since I have the rods and crank already(RB25) and an RB20 bench motor that I intend for a tear down and rebuild.
Any ideas people.