Subject: the bottom end on the V12's are bullet-proof. The Author: TxGr8white : member since December, 2007 : 28 posts Posted on: 2010-01-22 10:47:58

only real things you will need to concern yourself with that are S70 specific would be the pistons, piston rings, and in the most extreme case the crankshaft. Alot of these V12's have over 200,000 miles on them and are still running strong. I just recently did valve stem seals and intake gaskets on a EURO Csi with 235,000 miles. The engine in this car still pulls very hard and it currently has over 250,000 miles. You will be replacing clutches though at this kind of mileage. DK Motors (throttlebodies) are the same as the M70, the MAFs however are slightly different and a tad bit more expensive.
Bottom line: don't be frightened these things were designed to last.
My personal preference is a moded (chips, exhaust) M70 since it is a low compression engine - it also will allow you to do a twin turbo set-up without changing out major internal components as you would with the higher compression mototr (S70, M73).

• 850i vs 840ci ? - jamieshea 2010-01-21 06:29:53 (320 views)
  • go with the M70. I have owned the V8 (both M60 and - TxGr8white 2010-01-21 10:34:52 (323 views)
    • Re: go with the M70. I have owned the V8 (both M60 and - jamieshea 2010-01-21 20:14:53 (307 views)
      • the bottom end on the V12's are bullet-proof. The - TxGr8white 2010-01-22 10:47:58 (345 views)
      • Re: go with the M70. I have owned the V8 (both M60 and - revtor 2010-01-22 06:00:22 (260 views)
        • Re: go with the M70. I have owned the V8 (both M60 and - jamieshea 2010-01-23 02:18:53 (212 views)
          • If you get a 6-speed, then you already have the saem tranny, - TxGr8white 2010-01-23 13:00:29 (209 views)
            • Re: If you get a 6-speed, then you already have the saem tranny, - jamieshea 2010-01-23 16:50:50 (204 views)
              • in case of the M70 you will have plenty of used spare parts - shogun 2010-01-27 23:09:35 (199 views)
                • Re: M70 - great, but no manuals available - EVER - jamieshea 2010-01-28 02:00:22 (212 views)
                  • Can be converted for around $4-$5K, but after you have - TxGr8white 2010-01-30 00:09:17 (227 views)
                    • Re: Can be converted for around $4-$5K, but after you have - ladislav 2010-02-08 22:46:59 (184 views)
                  • can be converted to manual (url) - shogun 2010-01-28 23:26:47 (200 views)
                    • also interesting-M70 in other cars (url) - shogun 2010-01-28 23:37:19 (204 views)