Inliners International Forums General Discussion Vortec 4200 4200 oiling system - notes and mod's

I tried looking at the oil pump part numbers for the I4 and I5 engines and they appear the same? I can't verify since they're sold as an assembly.

I'm sure it wouldn't hurt but would this mod be effective in those engines(especially in a turbocharged setup)? Or, do you think the extra oil just goes to the balance shafts which the 4.2s do not have?