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305's and 350's

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Wally81k5, Mar 31, 2003.

  1. Wally81k5

    Wally81k5 1/2 ton status

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    305\'s and 350\'s

    Will my flywheel off of a 73 350cid fit onto a newer 305(EFI)??

    If no.. when i get a flywheel for the 305 will my clutch from a 1973 sm465 bolt up?

    help please....

    I know 305's are for girls but i have a goodline on one and it fi... and then i can build my 350 the right way..
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Re: 305\'s and 350\'s

    NO, the bolt circle is different and also all the newer (1986-up) engines are external balanced on the rear only. Not sure about the actuall clutch fitment though.
     
  3. Wally81k5

    Wally81k5 1/2 ton status

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    Re: 305\'s and 350\'s

    okay.. now what about an old carb'd 305?

    Will my flywheel and clutch fit?


    Ryan

    IS the bolt pattern for th bell housing the same>
     
  4. chevyracing

    chevyracing 1/2 ton status

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    Re: 305\'s and 350\'s

    no

    yes
     
  5. chevyracing

    chevyracing 1/2 ton status

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    Re: 305\'s and 350\'s

    Depends on the year, I think an older 305 flywheel will work on a 350 crank. You will have to change the starter I believe though. Just wondering .....why do you want to put a 305 flywheel on a 350. If you do I hope you have the rotating assembly balanced.....


    The bell housing bolt pattern is the same. Sometimes the 305 had a smaller diameter bell housing that a flywheel from most 350's will not fit in.

    John
     

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