[snoopstang]

will a r block fit in a dart block. The dart is 2.081 common journal size

 

[ordinary builder]

same ,....unless someone machined something differently....Lobes and journals are in same position

bearing diameter is stock 2.082 journal...

 

[ordinary builder]

you can have the block changed to use all the same diameter or to be same as stock bearing s that are all different diameters...

....