Swapping 6 to 8

Discussion in 'Technical' started by Mav-Grabber, Feb 23, 2006.

  1. Mav-Grabber

    Mav-Grabber 289 Works Fine

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    I plan on taking the inline six out...
    changing it with a 289..
    any helpful hints...
    And is it a wise choice...

    Mav-Grabber:tiphat::huh:
     
  2. don graham

    don graham MCG State Rep

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    i think you'll be happy with the new engine. do you have all the parts you need already or is this in the planning stages? do you have the motor and mounts, engine and tranny crossmember. are you rebuilding or modifying the engine before it goes in? good luck with the swap. you may need to upgrade the radiator also.:)
     
  3. Mav-Grabber

    Mav-Grabber 289 Works Fine

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    Planning and spending...

    Well don ..I'm working on the guy on selling me the motor..
    But in the mean time ordered the motor mounts...tranny mount...
    I was told this car had an 8 in it before...
    This car has 5 studs but 9 inch drums...
    So can i run it with the 9's or should i get the 10 inch
    This means new backing plate...wheel cylinders...ect...
    But will the backing plate fit....9 or 10 are they the same...?

    Mav-Grabber:tiphat:

    Greg:huh:
     
  4. don graham

    don graham MCG State Rep

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    personally i would leave the rear as is and change the front to a disc brake setup. most of your breaking power is in the front end anyway.:)
     
  5. Mav-Grabber

    Mav-Grabber 289 Works Fine

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    And from what i hear the Granada...will fit

    Like i say this is all new to me...
    finding out before i spend is the way i want to go....
    Greg
     
  6. don graham

    don graham MCG State Rep

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    if you don't get that 289, i'd try for a 302. the 302 should be a more common engine to find. the 289's are starting to become harder and more expensive to find. at least around here.:)
     
  7. tim keck

    tim keck truckdrivintrailertrash

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    if you have the 200,you'll have to change trannies as well,the bolt pattern is different.Also,the 200 springs w/v8 will sit a bit(1-2")lower than stock.A 250 trans will bolt up to a v8,front will sit the same.If it was a factory v8 car,the 5th vin digit will be F,250 six is L,andthe 200 is an X or T,I can't remember for sure.You'll need the maverick specific v8 frame stands and a v8 double hump trans crossmember(not totally neccesary unless you want to run dual pipes).Try to locate a v8 throttle cable too.
     
  8. Jamie Miles

    Jamie Miles the road warrior

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    200 is a T in the V.I.N.

    You can bolt a 250/302 bell housing on your original trans. Just don't beat on it too hard.
     
  9. ratio411

    ratio411 Member

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    If you don't have the engine yet, shoot for a 302.
    Like said above, they are more common, and the extra cubes do matter.
    Some guys like later (roller cam) 302s, but they are thinner than some years blocks, and they do require some slight modding for mechanical fuel pump and to use a manual tranny.
    The stronger 'old' 302 will range from 68-72.
    After 74 or so, the heads leave much to be desired.
    If you find a set of 69-74 351w heads, they will add a cheap power boost to a 302.

    75-81 Granada, Monarch, Maverick, Comet
    You may need to use a different tie rod end considering the year of your Mav.
    Also, the stock rims will not fit, the bearing hub is larger.
    Also fit:
    68-73 Mustang
    68-69 Stang will be a direct swap. Hub and tie rods the same as early Mavs.
    70-73 Stangs used larger parts like the Granada.
    Some Cougars in these years will work too.

    68-69 Torino, Fairlane, Falcon, Montego, Cyclone
    68 parts are small hub, direct swap.
    69 used large hubs.

    Good luck!
    Dave
     
    Last edited: Feb 23, 2006
  10. 69 ina 1/2

    69 ina 1/2 Fox body nut!!!

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    Not to steal this mans thread, but how do you modify the new blocks to accomodate a mechanical fuel pump? This something I'd be intrested in doing.
     
  11. ratio411

    ratio411 Member

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    I have never done it myself, so I am just taking an educated guess here...

    You would need an early timing cover with the fuel pump mount to be sure.
    Then inside the cover, on the cam gear, you would need the correct cam retainer plate, cam bolt, washer, and pump eccentric.
    That is all I think you would need to get the pump on and everything lined up correctly.
    I think the cam retainer plate on the late blocks is thicker, possibly to take up some of the thickness of the pump eccentric and washer. Again, just a guess.

    For the manual tranny linkage:
    The late blocks do not have the mounting boss for the linkage.
    There is someone out there I have heard that makes a steel bracket that uses other bosses on the late block. You bolt it on, then it supplies a mount point for the tranny linkage.
    Just incase someone was wondering.
    Dave
     
  12. Jamie Miles

    Jamie Miles the road warrior

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    Dan Hines would be the guy to contact as far as swapping from an old 302 to a new 302 goes. He has a 1995 5.0 roller engine in his '71 Grabber, looks like it just rolled off the showroom floor in 1971. You would never guess that engine is 25 years newer then the rest of the car, 100% stock appearing.
     
    Last edited: Feb 25, 2006

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