A8 / S8 (D2 Platform) Discussion Discussion forum for the D2 Audi A8 and S8 produced from 1994-2002

S8 with ABZ engine block

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Old Apr 11, 2018 | 04:12 AM
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Default S8 with ABZ engine block

Hi guys,
i'm on the beginning of swaping 4.2 V8 32V into C4 chassis. I bought an engine from S8 with engine AHC ( the label in the trunk says that it's the AHC engine), but on the right side of the engine ( on the block ) it has label ABZ. Part numbers of the fuel injectors and the ECU are from AHC, so it is possible to be AHC engine with ABZ block ? I'm very confused.
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Old Apr 12, 2018 | 01:12 PM
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Originally Posted by scorpion526
Hi guys,
i'm on the beginning of swaping 4.2 V8 32V into C4 chassis. I bought an engine from S8 with engine AHC ( the label in the trunk says that it's the AHC engine), but on the right side of the engine ( on the block ) it has label ABZ. Part numbers of the fuel injectors and the ECU are from AHC, so it is possible to be AHC engine with ABZ block ? I'm very confused.
Someone likely blew the original engine and swapped ABZ into it.
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Old Apr 12, 2018 | 01:29 PM
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Or maybe just a shortblock? Might be the same.
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Old Apr 13, 2018 | 09:00 AM
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Originally Posted by audinutt
Someone likely blew the original engine and swapped ABZ into it.
I know that the differences between AHC and ABZ are mostly mechanical, but still is it possible to run ABZ with AHC wireness ?
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Old Apr 13, 2018 | 10:22 PM
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Originally Posted by scorpion526
I know that the differences between AHC and ABZ are mostly mechanical, but still is it possible to run ABZ with AHC wireness ?
It would appear so since you're doing it.
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Old Apr 13, 2018 | 10:25 PM
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I knew this sounded familiar.... look here.

"I have met this new liscensed mechanic from the Audi dealer in Kuwait , My car is in his workshop he told me that the ABZ and AHC piston Block is the same only the difference is in the heads and in the Manifold system ,and the fact is i bring one complete used engine from An A8 and the part number on the block is the same like my old engine anyway i will give you all the information for the car as sonn as i tested !"

https://www.audiworld.com/forums/a8-...1753384/page3/
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Old Apr 17, 2018 | 09:20 AM
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Hmm i tought so too. Nevertheless i see differenet part numbers for the el.components, maybe i will have some problems with the wiring .
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