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Thread: 20v - 16v a4age compatibility

  1. #1
    Junior Member Backyard Mechanic cri_ag's Avatar
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    Default 20v - 16v a4age compatibility

    ok so the story goes i brought a 20v block that had been fitted with gze pistons ect. in anticipation of a turbo conversion. however i dont wish to run the 20v head, rather the smallport 16v one, so as not to have to worry about distributors, plenums and water lines. now seeing i have a 20v block and a 16v head can anyone see any problem with running a 16v timing belt? also will the 16v oil pump be compatible?

    cheers guys
    craig.

  2. #2
    Junior Member Domestic Engineer BigWorm's Avatar
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    Default Re: 20v - 16v a4age compatibility

    Blocks are the same, so 16v timing belt & oil pump will be fine.

  3. #3
    MR 18RG Chief Engine Builder The Witzl's Avatar
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    Default Re: 20v - 16v a4age compatibility

    i dont see any reason why not.... the only thing i can maybe think of is the oil drain on the smallport 16V on the intake side near cyl 4.... i dont remember if the 20V has this.
    ...... butt scratcher?!


  4. #4
    Junior Member Backyard Mechanic cri_ag's Avatar
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    Default Re: 20v - 16v a4age compatibility

    Quote Originally Posted by The Witzl
    i dont see any reason why not.... the only thing i can maybe think of is the oil drain on the smallport 16V on the intake side near cyl 4.... i dont remember if the 20V has this.

    yep good call the 20v does not, the sump is getting a inlet welded into it either side one for turbo oil return, another for said head drain.

  5. #5
    AGE-16V Automotive Encyclopaedia Dimmy's Avatar
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    Default Re: 20v - 16v a4age compatibility

    Sorry to hijack the thread guys, but since it's the compatibility thread i thought i'd ask here

    Im looking at buying a microtech ltx8 with the loom off a mate who's had it in his car for the last 2400km of its life. Now the engine is a 4age 16v whereas i need it for a 20V. Would you know if the loom would have to be changed or can it be used?

    Thanks
    I have been pruned by old man river!!!!!

  6. #6
    Junior Member Backyard Mechanic cri_ag's Avatar
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    Default Re: 20v - 16v a4age compatibility

    ok cheers for the confirmation bigworm!

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