Any one interested in the oiling mods I did?
Here is the front of the block, and the crankcase also. You can see all the extra iron in the main webs.
There is an ugly secret to these R blocks. But first let me ask you - what would you think if I told you I had a small block that had a 4.35" bore and could hold a 4.25" crank no problem? It can also mate up with some very serious-flowing heads that are readily available.