The cost to rebuild is going to be dictated really by what tyou want from it and then what parts you put into the engine.
So when you say a performance built, and you talking about just adding a few HP, or going allot futher?
The thing with a 120K LT1 is when you start taking it apart you run into the " now is a good time too..." replace the opti, Water Pump etc. None of which are cheap.
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93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada
1) Build it
2) Race it
3) Break it
4) Repeat!!!
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