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Looked at the rebuilt engine and would have many questions. The internals (bearings, rings, pistons) are pretty much bulletproof if oil is maintained. On the BMW engines it is the seals and gaskets that are the issue. The ebay motor said they did all the internals. Since the block uses a Alumisil Harding process for the bores, are they qualified to redo it?
I just went through my motor, had it pulled and went through it all and replaced everything. I didn't do valve seals (not a issue on the M62 motors). Cost was about $6000
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2003 X5 4.6is Estoril Blue
2005 Infiniti G35X
1972 Datsun 240Z
1991 Isuzu Impulse XS Sold
1972 Fiat 850 Spyder Donated
1972 Datsun 240Z Sold
1972 Datsun 510 Sold
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