Any one interested in the oiling mods I did?
The block is an R3 which luckily does not need tubed lifter galleys. But, when you use the R3 with any of the 'higher end' heads (like W7/8/9 series) they require pushrod oiling and therefore the lifter bores have to be drilled. If I didn't drill them, there would be no path for oil to the rockers/valves. That said, I only drilled them to .046" which is far less than the OEM type block open galley.