Engine Code Help?

[Lwilliams]

Basically I want to rebuild a XUD engine to a reliable 180/190 bhp I know some of the basics I need TD04, 11m bosch, FMIC etc..

I have been trolling the net looking for information on engine codes I found something on Wiki but not sure on how true it is:

XUD9 65 PS (64 hp/47 kW) Diesel
XUD9 A 71 PS (70 hp/52 kW) Diesel

XUD9 TE/L 92 PS (90 hp/67 kW) Diesel turbo with intercooler

XUD9 SD 63 PS (62 hp/46 kW) Diesel turbo catalyst
XUD9 SD 75 PS (74 hp/55 kW) Diesel turbo catalyst

XUD9 TE/Y 90 PS (88 hp/66 kW) Diesel turbo with intercooler catalyst
XUD9/Z

I am trying to find a good starting point whats the difference in these engines etc... whats the best? I have read a few places that HDI rods are better but hopefully looking at forged if some one gets a group buy going

Thanks in advance guys