Rb Series Flywheels And Clutchs

[CameronBNR32]

Hey all,

Are all the RB series flywheels and clutch interchangable?

I have a lightened flywheel and twin place clutch here, I know its off an RB series motor but not the type.

say the flywheel/clutch is off an Rb20 or Rb25, could it be used on an R32 GTR rb26??

only problem I can see is the bolt patterns to the crank or the starter motor gears..... but I would think all the RBs are all the same??