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Thread: Ally Head ID

  1. #1
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    Ally Head ID

    Long shot but can anyone help with identifying these ally heads?

    1.jpg
    2.jpg
    3.jpg
    4.jpg
    5.jpg

    I do not think they are AFR heads even though push rod guides are made by AFR.
    It just does....

  2. #2
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    Here are a few more pics.

    6.jpg
    7.jpg
    8.jpg
    9.jpg
    10.jpg
    It just does....

  3. #3
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    One more...

    11.jpg
    It just does....

  4. #4
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    Pic 10 shows they are CNC ported heads (tell tale 'rings' descending down the ports) which would be on brand for AFR.. although all the pics on their website show heads with a big engraved AFR logo on the end, that could always be a recent addition I suppose.
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  5. #5
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    Pic 6 shows Air Flow Research on the push rod guides so think Aaron may be correct.
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  6. #6
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    Quote Originally Posted by aaronjb View Post
    Pic 10 shows they are CNC ported heads (tell tale 'rings' descending down the ports) which would be on brand for AFR.. although all the pics on their website show heads with a big engraved AFR logo on the end, that could always be a recent addition I suppose.

    Interesting finish on the walls, wonder if they've done that deliberately to promote turbulence at the surface in a bid to stop fuel dropping out on the walls (assuming carb'd inlet).

    Those pushrod separators look a bit on the rough side!

  7. #7
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    Thanks for your input guys. In do not think they are AFR heads although they are machined ports and machined combustion chambers.

    The port machining is obviously a specialist job and is not (usually) carried out in someones shed etc. The rest of the machining looks a little ruff as all the burrs are still evident.

    I did check the trick flow website and they look similar but again no sure.
    It just does....

  8. #8
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    Quote Originally Posted by GDCobra View Post
    Interesting finish on the walls, wonder if they've done that deliberately to promote turbulence at the surface in a bid to stop fuel dropping out on the walls (assuming carb'd inlet).

    Those pushrod separators look a bit on the rough side!
    Very rough!
    It just does....

  9. #9
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    Quote Originally Posted by GUMBALL View Post
    Pic 6 shows Air Flow Research on the push rod guides so think Aaron may be correct.
    Sorry, didn't read the original post fully - just seen the bit at the bottom!!
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  10. #10
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    Quote Originally Posted by GDCobra View Post
    Interesting finish on the walls, wonder if they've done that deliberately to promote turbulence at the surface in a bid to stop fuel dropping out on the walls (assuming carb'd inlet).

    Those pushrod separators look a bit on the rough side!
    For me it was deemed good practice to machine/port the exhaust ports but be a bit more
    conservative with the inlets, a bit rough is good for atomising the fuel, you can just waste
    fuel if too smooth .
    Thats my take on the subject.
    Chris.

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