i need to replace my valve seals, has anyone done this firsthand?? Options

[forkee]

k so i thought it was my turbo's fault the first time i was burning oil cuz when i took it off and ran stock, i didnt get any smoke. after getting the turbo rebuilt, it fixed the oil leak problem, but it was smoking again. turns out the added pressure is letting oil get past the seals onto the stems and burning out the back. and its really bad too. i added some "no smoke + stop leak" stuff, and it helps on the low end, but when i really punch it, i still get A LOT of smoke. i mean it clears the freeway about 50 feet behind me.

so my question is, has anyone replaced theirs or gotten it replaced?? i need to get this done asap because its really starting to bug me. plus its deterring me from boosting because i can never go full throttle. if anyone has had this done, how much did it cost for either DIY or for a mechanic to do it, what parts will i need, and where can i find those parts.

thank you

[97GTinKC]

still sounds like the turbo may be leaking internally, check the intake on the engine side of the turbo for oil b4 tearing in to the head, its almost as bad a job on the 7a as it is on the 5s, but you want to check all other possibilities 1st. usually, valve stem seals allow more oil in on conditions of high vacuum, such as idling at a traffic light, I suppose you could have too much blow-by past the rings under boost and be pressurizing the crankcase to force oil past the seals, could need extra crankcase ventilation, or the boost could have already cooked your rings...
you are looking at pretty much doing all the steps to actually pulling the head except the head bolts, intake and exhaust manifolds, then trying to work on it in the car, might as well just pull the head and get the valves done too, let the machine shop do it all properly. (and while the head is off, drop the pan and replace the rings and rod bearings too)