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300 inch ford six question

Discussion in 'The Hokey Ass Message Board' started by yblock292, Mar 4, 2010.

  1. yblock292
    Joined: Oct 10, 2006
    Posts: 2,938

    yblock292
    Member

    got an early carbureted 300 six, will a 91 AOD bolt up to it if not what AOD will?
     
    The Arizona Old Crow likes this.
  2. kustomkatt
    Joined: Mar 3, 2010
    Posts: 10

    kustomkatt
    Member
    from sweden

    I dunno if you know about fordsix.com, quite shure you get an answer there,everything about inline sixes!! :)
     
  3. yblock292
    Joined: Oct 10, 2006
    Posts: 2,938

    yblock292
    Member

    hey kool thanks!
     
  4. yblock292
    Joined: Oct 10, 2006
    Posts: 2,938

    yblock292
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  5. railroad
    Joined: Feb 3, 2010
    Posts: 243

    railroad
    Member

    I think the sixes and the small block ford have the same bolt pattern. The AOD would be 6 bolt only, but you might find a 5 bolt pattern on early sixes. I am doing this from memory and do not have the information in front of me.
     
  6. dirtcop
    Joined: Dec 16, 2005
    Posts: 184

    dirtcop
    Member

    I just installed a 300 inline into a 1965 Ford F100. I found lots of answers to my questions on inline engines on ford-truck.com (also comes up on a search for Ford enthusiasts). They have an "inline" forum I don't know about automatics, I put a granny 4 speed in my truck. Have fun.
     
  7. AnimalAin
    Joined: Jul 20, 2002
    Posts: 3,417

    AnimalAin
    Member

    Needs the correct flexplate, but the bellhousing mounting pattern is the same as a 6-bolt 289/302/351. I.e., almost all will fit.
     
  8. god300
    Joined: Mar 4, 2010
    Posts: 3

    god300
    Member
    from indiana

    if taking it from a 302 truck u will need the flexplate too have had bad results for not doing that but it will bolt in
     
  9. yblock292
    Joined: Oct 10, 2006
    Posts: 2,938

    yblock292
    Member

    great thanks guys!
     
  10. hoop
    Joined: Mar 21, 2007
    Posts: 565

    hoop
    Member

    I know 240 has neutral balance flexplate don`t know about 300 but 302 & 351 are not neutral balance and will shake your engine to pieces.
     
  11. kidzintha34fodor
    Joined: Feb 12, 2009
    Posts: 408

    kidzintha34fodor
    Member

    You might want to double check, but I think that the early 240 and 300 may have had a different bell housing. I think the change happened in the mid 70's but I'm not 100%. I think my dad ran into that on his project.
     
  12. Phil1934
    Joined: Jun 24, 2001
    Posts: 2,608

    Phil1934
    Member

    I've done AOD behind 300. Need 6 cyl flexplate as neutral balance. From above post as to difference in 240 and 300, only thing I remember is 240 was 9-1/2" clutch and 300 was 10".
     
  13. god300
    Joined: Mar 4, 2010
    Posts: 3

    god300
    Member
    from indiana

    yes i was wrong on the flexplate u need the 300s flexplate for engine balance (seeing it doesnt a a balancer on it) sorry for that i forget things sometimes
     
  14. god300
    Joined: Mar 4, 2010
    Posts: 3

    god300
    Member
    from indiana

    and if your 300 is an 80s model it will work they were carb from 65 to 86 the just call ford dealer and give them the block number they can give you the year of it
     
  15. Don't forget to add the TV (throttle valve) cable and get the line pressure in the trans adjusted correctly. AOD's will burn up in a hurry with incorrect oil pressure. Lokar sells the cable. I have an AOD behind my 300 six (see avatar). Works great, and runs strong.
     
  16. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 2,649

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    All 240 / 300 sixes came with a large diameter flywheel - 164 teeth, I think. Some passenger cars like Mustang use a smaller, externally balanced flywheel (157 teeth?) and bellhousing even though the bolt patterns on the six and small V8s are the same. So if the AOD has a bell that can accommodate the larger 300 neutral-balanced flywheel you are good to go. If the AOD has the smaller pass car it gets more complicated. You will need a smaller flywheel. A Granada with a 250 six / C4 flywheel will fit the 300. Just make sure it it neutral balaned. It will require the smalled bell block plate to relocate the starter motor hole for the 157 tooth wheel. Good luck. We made a similar setup - except using a C4 - fit a Pinto.
     
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  17. yblock292
    Joined: Oct 10, 2006
    Posts: 2,938

    yblock292
    Member

    kool thanks you guys, gonna try stuffin this in my chopped 51 shoebox
     
  18. bluebolt
    Joined: Jan 9, 2008
    Posts: 309

    bluebolt
    Member
    from Benton LA

    All 240/300 Fords from 1965 to 1996 have the 6 bolt SBF pattern. I am fairly sure AOD's only came in one case pattern, the 6 bolt and there is only one size of flexplate, the 164 tooth. There may be a modular V8 pattern AOD but early modulars used the SBF pattern and was switched around 1994 thes same time the AOD was dropped. The similar looking AODE/4R70 came in either the SBF pattern (two starter bolts) or the 4.6/5.4 modular pattern (three starter bolts).
     
  19. mtkawboy
    Joined: Feb 12, 2007
    Posts: 1,204

    mtkawboy
    Member

    Try and find a set of 95 fuel injected F150 exhaust manifolds, they are like a set of headers compared to the early log manifold
     
  20. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 2,649

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    And check out my home-built 3 x 1 intake for the 300 at www.inliners.org tech tips forum.
     
  21. daddy_o's_diner
    Joined: Sep 8, 2007
    Posts: 2,769

    daddy_o's_diner
    ALLIANCE MEMBER

    I need to bump and old thread for a new project.

    I have a 240 c4 combo in my new shop truck. I'm looking to swap in a 300 backed by an AOD.

    Will the flex plate off the 240 work with AOD? If not, what flexplate do I need?

    Thanks in advance?
     
  22. F-ONE
    Joined: Mar 27, 2008
    Posts: 1,718

    F-ONE
    Member
    from Alabama

    It should.....
    The 240/300 has a neutral balance flex plate, otherwise it's identical to a SBF flex plate.
    The bottom line is, it should work.
    But.....
    You know how Ford stuff is:rolleyes:
    If the 240 plate does not work.... get a later model AOD plate for 95 F150 4.9 AOD....

    Save those 240 heads. They are higher compression than later model 300 heads.
     
    daddy_o's_diner and sidevalve8ba like this.
  23. sunbeam
    Joined: Oct 22, 2010
    Posts: 3,975

    sunbeam
    Member

  24. I would be concerned about the difference in flange depth between the C4/240 flex plate vs the AOD plate. I am not saying there is a difference, but AOD's run a thicker torque converter because of the lock up feature and dual input shafts. I ran into this problem replacing a C6 with an AOD. The AOD torque convertor bolts to the C6 flexplate, and the engine bolts to the trans, but the C6 flexplate pushes the AOD torque convertor to far into the transmission. This results in a burned up trans pump real quick, and is not good for the crank bearings either. The C4 may have the same situation.

    Ford put a ton of AOD's behind 300's in the 80's and 90's. Just go to your local part store and pickup a new flexplate like F-ONE recommended. Well worth it if you don't have to pull the engine or trans a 2nd time.
     
    Last edited: Dec 12, 2018
    F-ONE likes this.
  25. F-ONE
    Joined: Mar 27, 2008
    Posts: 1,718

    F-ONE
    Member
    from Alabama

    I'm not sure if Ford changed teeth patterns on the big sixes through the years. I know SBFs had different teeth pasterns through the years. Whatever flex plate you get you will need to make sure the starter is compatible...
     
  26. bdynpnt
    Joined: Feb 9, 2009
    Posts: 354

    bdynpnt
    Member

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