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  •  » 69 351w distributor gear help

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    2/21/2020 11:02 AM  #1

    mustang stu
    FYI FORD Member

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    Registered: 4/15/2016
    Posts: 93

    69 351w distributor gear help

    Getting ready to install distributor,it's a pertronix stock looking distributor,the instructions state that this distributor
    comes with a hardened steel gear,that may not be used in all applications,check with cam manufacturer. I called
    com cams tech line they said the cam 268 high energy is made of cast iron and that I need a cast iron distributor
    gear. Which they don't sell. The engine rebuilder said that that steel gear should work fine with a cast iron camshaft. I know the distributor shaft size is 531. I'm sure someboby knows which way I can go,I can use help on this one. THANKS mustang stu

     

     

    2/21/2020 12:09 PM  #2

    RV6
    Senior 24-7 FYI Addict

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    From: Pine Junction, CO
    Registered: 3/01/2016
    Posts: 1,250

    Re: 69 351w distributor gear help

    According to this your rebuilder is correct.
    https://help.summitracing.com/app/answers/detail/a_id/4904/~/which-distributor-gear-should-i-buy%3F

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    2/21/2020 4:04 PM  #3

    TKOPerformance
    Hyper FYIFORD ADDICT

    Offline

    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,514

    Re: 69 351w distributor gear help

    See if the steel gear is "melonized".  If so it will work with ductile iron, cast iron, or steel cams.  Kind of a one size fits all.   

     

    2/22/2020 8:46 PM  #4

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,282

    Re: 69 351w distributor gear help

    Be careful if you swap gears.  I know of one engine where the pertronix used a different size distributor shaft, and installing a stock Ford gear on the dist resulted in too much clearance between the gear and shaft, resulting in a sheared off drive pin. 

    Gears are always an interference fit and that requires heating the gear in order for it to slide onto the shaft.  If it easily slides on at room temperature, it will be prone to problems from being too loose.

    You need an iron gear to make the camshaft live with that distributor.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

     

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