moat

I like to understand better sources of engine oil leaks for first generation LS. Besides the two valve covers (including those 4 little semi-circle plugs), two cam seals, one crank seal, upper and lower oil pans, where else could engine oil leak from? which are the common ones?

PureDrifter

iTrader: (10)

rear main seal

and that's pretty much it. anything else is abnormal.

PK_Celsior

iTrader: (18)

possible power steering hoses xD just a though

PureDrifter

iTrader: (10)

not engine oil...

moat

By "rear main seal", you mean the output shaft seal right? (a.k.a. transmission extension housing seal)

Also, is it pretty common for those four semi circle plugs to leak after 200k miles?

PureDrifter

iTrader: (10)

if they aren't messed with they should be fine.