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SBF clutch and flywheel application question

Discussion in 'The Hokey Ass Message Board' started by alteredpilot, Nov 14, 2011.

  1. i have mystery small block ford in here. its an early block with a 50 oz balancer a 10.5" borg and beck clutch and 164 tooth flywheel.

    can anyone tell me what type of vehicle might have come with this configuration so i can start looking up some part numbers???

    thanks.
     
  2. bump before it gets buried
     
  3. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,960

    gas pumper
    Member

    The casting numbers and letters on Fords tella story. I don't know what they mean, but the ford guys do.

    Post the heads, block, flywheel, etc.
     
  4. HOT40ROD
    Joined: Jun 16, 2006
    Posts: 961

    HOT40ROD
    Member
    from Easton, Pa

    If it a pre 1981 block it should be a 28 balance flywheels. But some have used the early blocks with the 50 oz balance. Reason being the later blocks have a habit of spitting in the middle if you put a lot of HP to them.

    Find the casting numbers on the block. It should be in the area under the area of the starter. That way you can tell what year the block is.
     
  5. Thanks guys. The block is not really important at this point. Anyone have an answer based on the info provided?
     
  6. hammerstien
    Joined: Sep 16, 2010
    Posts: 49

    hammerstien
    Member

    sounds like fox mustang parts. they ran a 164 tooth f.w. and 10.5" clutch. My only q is if its a diaphragm style or not.
     
  7. Sounds like '81+ 302ci with T5. 351w's stayed with 28oz, where the 302's went from 28oz (early) to 50oz in '81. Most likely a Mustang 5.0 as they used 10.5" clutches and 164T flywheels.
     
  8. Cool. Thx. Ill get a peek at the catalog.

    Hammerstien, like I said, it has a 3 finger in it now.

    Its definitely a frankencar, but its pretty tuff to start the ordering process at the local parts house without a reference car.
     
  9. Mr48chev
    Joined: Dec 28, 2007
    Posts: 36,015

    Mr48chev
    ALLIANCE MEMBER

    I'll pm you a phone number of a guy who knows Ford small blocks better than just about anyone.
     
  10. hammerstien
    Joined: Sep 16, 2010
    Posts: 49

    hammerstien
    Member

    You didnt say it was a 3 finger pressure plate. Early ford cars ran a 10.5 inch clutch with the 3 finger pressure plate. Say 65 mustang v8. the flywheel dosent care as long as the bolt pattern is the same. just make sure to use a 50oz flywheel.
     
  11. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    When you say "early block" how early? As the guys mentioned, Ford didn't go to a 50 oz imbalance until 1981. It is possible someone has put a later crank, damper, and flywheel on a pre 80 engine, but no early engine I know of ever came with anything but 28 oz from the factory.

    Problem with these sbf's is that there is a lot of mixing and matching going on. My 331 is a late 90 roller motor, but the **** stroker comes as an early imbalance..........not sure why, but it does.

    Don
     
  12. Hammerstien: borg and beck = 3 finger

    DHR, the casting #s say 1969 (28 oz). i called the owner to ask any info and he had none. so apparently, someone put a late model rotating ***embly in it, and obviously kept the early style pressure plate.

    as previously stated, its a frankencar.

    that part i already had figgered out, but you cant just call o'reilly and ask for a 164 tooth flywheel without the good old "what kind of car?" routine.

    the ONLY thing i'm interested in right now is figgering out which model had a 164 tooth wheel and i think that may have been answered.

    thanks.
     
  13. JeffB2
    Joined: Dec 18, 2006
    Posts: 9,665

    JeffB2
    Member
    from Phoenix,AZ

    Now since some folks like swapping things around vendors like Summit do offer 164 tooth flywheels with a 28 oz or 50 oz balance factors,so if you were to bolt up a 1980 or earlier 302 to an '81 and later Fox body T-5 the balance would be correct the same applies to flexplates.To really be safe verify 3 things by code,the block ,the crank and the balancer then get the correct flywheel,if you mix up the wrong parts it will probably vibrate itself to death.
     
  14. yeah, i know. i just went thru this on my 54 with a 302. had to get a 50 oz balancer with the 28 oz dimensions and a small 50 oz flex plate to use all of my early model pulleys and brackets. BTW, Mustangs Etc. in the valley out here was VERY helpful in that project. and the guy over there (garrett?) is a HAMBer as well.

    like i said before, it has a 50 oz balancer on the crank. the only reason i don't call mustangs etc (whom i CAN call and just say, i need a 50 oz 164 tooth wheel) is that they don't deliver, its not a short drive and i don't have an account with them, unlike the 3 major parts houses in my neighborhood.
     
  15. looks like an 85 bronco application will work....
     
    Last edited: Nov 15, 2011
  16. rustang
    Joined: Sep 10, 2009
    Posts: 710

    rustang
    Member

    I would check the casting numbers which are located above the starter on the bottom side of the block... this will narrow down the year of the block....

    +1 on all of the above info from '81 on...just note one other thing, many of the serpentine setups require a reverse rotation waterpump...if they slipped in a later motor and changed to v-belt ***embly from an earlier engine, you may want to verify this.

    There are several other things to be aware of such as early distributor gear use with roller cam (if the engine ends up being a roller)...and different firing order for the later engines vs. early 289/302.

    For parts for these engines, you could contact CJ Pony Parts or NPD they both ship ASAP with NPD (National Parts Depot) being quicker.
    Tom
     

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