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Changing Cosworth head to unleaded

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richo
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2016/08/03 19:05:19 (permalink)
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Changing Cosworth head to unleaded

Hi Guys I was just wanted a rough cost of changing yb Cosworth head over to run unleaded fuel any help would be great thanks richard
post edited by richo - 2016/08/05 18:27:49
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    martymexico
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    Re: Changing Cosworth head to unleaded 2016/12/15 23:22:49 (permalink)
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    Doesn't it have hardened seats from factory.. It should be fine for unleaded being made around the mid 80s is when the world started to go unleaded and phase out real fuel. .. leaded !
    There are people here who have yb motors and would know for definite if they are unleaded comparable.
    #2
    NQRS
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    Re: Changing Cosworth head to unleaded 2016/12/17 09:51:56 (permalink)
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    You're certainly right there , Flighter.  I read somewhere that if you use a higher octane unleaded - 95/98 that it doesn't need to have hardened seats.  I use 95 because of higher compression but the seats were changed to hardened by the previous owner. Len
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    NQRS
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    Re: Changing Cosworth head to unleaded 2016/12/18 16:07:31 (permalink)
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    oops , my apologies, comments by Whooligan!!
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