Engine Afr 185 Valve Size

Discussion in 'Fox 5.0 Mustang Tech' started by fiveohlover, Mar 31, 2014.


  1. fiveohlover

    fiveohlover Member

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    I have some afr 185 that where made in 2005, part # 1387. I need to do a valve job so i had my machine shop measure them for me. I cant find any valves to fit it. I called AFR and they say the head is told old and they dont stock valves for it any more. The stem size is 11/32 but the length is whats getting me. They are 4 and 15/16 long and i can find any valves this size on summit. Can i use a different length valve that is a more popular size?
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  2. 84Ttop

    84Ttop They make new pistons every day, so why worry? SN Certified Technician Mod Dude

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    These are questions for your machinist. If he can't answer them then you need to find a new machinist.
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  3. rbohm

    rbohm Founding Member

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    iirc they are small block chevy valves, probably 1.94iand either a 1.50 or 1.60ex. i think they will be a 1.60ex since the afr185 is in direct competition with the windsor jr heads, and they were a 1.60ex.
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  4. fiveohlover

    fiveohlover Member

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    i know they ar 2.020 and 1.60 valves i just need to know if i can get longer or shorter valves because the size i have now is hard to come by
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  5. fiveohlover

    fiveohlover Member

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  6. rbohm

    rbohm Founding Member

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  7. fiveohlover

    fiveohlover Member

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    #7
  8. rbohm

    rbohm Founding Member

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    yep, i have two sets right now. one a gave to a friend of mine, and they run perfect in his Z28 motor.
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  9. fiveohlover

    fiveohlover Member

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    are they competition products brand or just some generic ones?
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  10. rbohm

    rbohm Founding Member

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    they are competition products valves.
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