VW alloy blocks - what are the origins?

Discussion in 'Engines' started by A.N. Other, Sep 30, 2010.

  1. danster Forum Addict

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    That may well be the case, AKL is the code, if you check on the logbook or cambelt cover it should confirm if it is or not.
     
  2. lufbramatt Forum Member

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    just checked, its an AVU.
     
  3. danster Forum Addict

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    Can you get a few pics?
    Be good to know if it is another type.

    Chris will be able to make another table soon. :lol:
     
  4. A.N. Other Banned after significant club disruption Dec 5th 2

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    We can never have enough tables!

    Seems we need a crossflow engine table (not just heads) and an alloy block table? Assuming there are some iron crossflows?
     
  5. danster Forum Addict

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    There are plenty of iron blocked crossflows.

    Get tabulating. :thumbup:

    How are the metering head lads fairing on the table front? :lol:
     
  6. 20v_jimmy Forum Member

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    This is something i have been thinking about for a while too, after seeing the akl block in my brothers leon s. i believe the aeh engine may be similar too and possibly the bfq.

    That would make at least 4 codes AKL, AEH, AVU and BFQ.

    My plan was this block possibly with 1.8t crank, pistons, and rods with my eurospec 8v head. By my calculations this should give a static comp of around 12.5 to 1 and be around the weight of a feather.

    Oh yeas and that talk of metering heads reminds me i need to go outside and check the codes on mine.
     
  7. danster Forum Addict

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    AEH, AKL and APF are all 1595cc and fitted to the mk4 golf.

    Non crossflow 8v heads will toil to fit these alloy blocks as there is a large open section to the rear of the headgasket face for oil returns. The 8v crossflow head does not utilise these, but the head is broader and covers this area with the headgasket.
    The 20v head uses this rear area for the extra 3 oil drains that it has.

    Engine mount would need to be bespoke for fitting in both mk1 and 2 platforms too.
     
  8. A.N. Other Banned after significant club disruption Dec 5th 2

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    Alloy blocks

    Engine code Size Origin Year Other info
    AEH 1595cc mk4 golf
    AKL 1595cc (8v) mk4 golf
    APF 1595cc mk4 golf
    AVU 1.6 (8v) mk1 octavia 53 plate 104bhp
    ALT 2L (20v) A4 8E chassis and 3B3 Passat 2001-2
    BFQ TBC TBC
     
    Last edited by a moderator: Dec 21, 2013
  9. danster Forum Addict

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    Here are some pics showing the 06B alloy block (AKL code)
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  10. danster Forum Addict

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    Here are some pics showing the internals.
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    [​IMG]

    These two showing internal clearance between crank and block.
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    [​IMG]

    EDIT: Earlier in this thread I mentioned the possibility of fitting the larger capacity cranks from 1.8 and 2.0 engines. However, on inspection of the engine internals it looks doubtful that the longer 1.8 or 2.0 cranks will fit in the AKL 1.6 alloy block. Pics above show very little clearance due to the block's internal design.
     
    Last edited: Dec 27, 2010
  11. mickey marrows Forum Member

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    I have a pair of Mk4 Golf 1.6 8v Crossflows.. one is iron block and one is alloy block (AKL and AEH).... the steel one coming from early mk4 production...

    I just bought them to play with :)
     
    Last edited: Oct 11, 2010
  12. A.N. Other Banned after significant club disruption Dec 5th 2

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    Stumbled over this lot on a thread entitled "VW Audi 2.0 Alloy Block"


    Question is what block is it? ALT, or some later thing? 06D casted on it.

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  13. HPR

    HPR Administrator Admin

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    this a N.A - 2.0 FSI block
    engine code AXW, but there are many more codes , need to search them....
    partnr on casting: R06D 103 023

    weight is just over 20kg ( 19.9 kg with 2 mm skimmed off deck)
    underneat the crank comes a plate / girdle and a pump / balanceshaft assembly,
    this together with the sump makes the block rigid
    its thin wall and empty feels a bit `` wobbly ``

    see also tread: Engines > 4 cilinder block weights


    The same block is the basis for the VW F3 engine
    see FSI forum : 2.0L 16V FSI Head Design
    Polo S2000 engine by lehmann > alloy block
    Fabia S2000 engine by Oreca > IMO, alloy block, but not 100% sure

    BTCC /WTCC S2000 engines use a steel block
     
    Last edited: Dec 27, 2010
  14. Idorap Forum Member

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    Fabia S2000 is an Alloy block ! (I have seen the engine)
     
  15. HPR

    HPR Administrator Admin

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    Thanks , Idorap
     
  16. AjVR Forum Member

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    So what gearbox will the ALT engine fit with ? O2a/O2j or something completely different.

    Seems like an ALT swap with rotrex charger is needed.
     
  17. A.N. Other Banned after significant club disruption Dec 5th 2

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  18. Tristan

    Tristan Paid Member Paid Member

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    dig , diggety dig dig.... any more demon research here guys? or has the war between the PFFMV and the 8AS distracted everyone?
     
  19. Tristan

    Tristan Paid Member Paid Member

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    I'm going touring my local scrappies some day soon... and quite fancy finding (a) an alloy block , preferably of 2.0 capacity , and an 8V Crossflow head to cap it , for my mk1...
     
  20. mark25 Forum Junkie

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    I think you need to be careful mixing and matching with the alloy blocks.

    In standard form they run about 20 oC hotter than other vw engines, 105 oC instead of about 86 oC or so. Other heads and pistons may be unhappy about that. Also they are more sensitive to temperature than normal blocks, for instance the ECU varies the running temp dependant on the engine load. This is done with an electronically adjustable thermostat. This situation would be hard to replicate without the OEM ECU.
     

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