2002 Xkr 4.2 mated to a 5sp auto?
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Hi!
In the United States, a 2002 model year XKR will have a 4.0L from the factory, not a 4.2L, It should have the Mercedes 722.6 aka W5A580 5 speed. The 5 speed Mercedes unit was/is one of the most robust transmissions coming out of europe.
If I owned a 2002 XKR, I wouldn't bother trying to fit a 4.2L engine in it. If power is concern, do some pulley swaps, improve the cooling, upgrade the intercooler pump, and have fun. If it's because mechanical failure, the older 4L lump should be cheaper anyway.
In the United States, a 2002 model year XKR will have a 4.0L from the factory, not a 4.2L, It should have the Mercedes 722.6 aka W5A580 5 speed. The 5 speed Mercedes unit was/is one of the most robust transmissions coming out of europe.
If I owned a 2002 XKR, I wouldn't bother trying to fit a 4.2L engine in it. If power is concern, do some pulley swaps, improve the cooling, upgrade the intercooler pump, and have fun. If it's because mechanical failure, the older 4L lump should be cheaper anyway.
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zray (07-11-2019)
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Don't be confused by the number on the shift bezel. This number is for the max gear you want the transmission not to go above, so it is a "5" for the 6 speed 6HP26, and a "4" for the 5 speed 5HP24. If you want the max gear to be the top gear, then you simply put it in "D". Hope this helps.
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zray (07-11-2019)
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Everything else being equal the XKR is going to be the faster, more reliable car - how much is that worth to you? Once the tensioners have been upgraded (and the very last of the 4.0 cars had the latest versions) your 4.0 XKR is going to be every bit as reliable as the later 4.2 cars.
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Everything else being equal the XKR is going to be the faster, more reliable car - how much is that worth to you? Once the tensioners have been upgraded (and the very last of the 4.0 cars had the latest versions) your 4.0 XKR is going to be every bit as reliable as the later 4.2 cars.
Really the complications you get from an R car combined with the overall improvements make it hard for me to recommend a XK8 4L car since the reliability improvements in the near same price range used 4L XKR make the car cheaper to own long term overall. They are just too close in price right now. On top of that, the R model has significantly more scoot.
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dizzly (07-11-2019)
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