1985 F-150 V8 w/ MFI

Discussion in 'General Maverick/Comet' started by Mr Nick, Jun 22, 2015.

  1. Mr Nick

    Mr Nick One with many questions

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    Can I use my original fuel pump from my 250?
     
  2. Krazy Comet

    Krazy Comet Tom

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    I fairly sure answer to that one is no...
     
  3. Mr Nick

    Mr Nick One with many questions

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    So what do I do in place of it
     
  4. Krazy Comet

    Krazy Comet Tom

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    Assuming the engine has a fuel pump eccentric on front of camshaft(not installed on EFI engines from factory), a '70s 302 pump will be what you want... Could also use a aftermarket electric pump ...
     
  5. Mr Nick

    Mr Nick One with many questions

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    Side note: can I use a 92 8.8 rear end out of an f150?
    So basically if I want to build this engine w/o electronics build off a 70's 302
     
    Last edited: Jun 26, 2015
  6. Krazy Comet

    Krazy Comet Tom

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    Not unless you want to cut the wheel wells and let the wheels hang out about 3 or 4" on each side... Really not even then as sprting perches are incorrect in location...

    For engine, AFAIK everything except the front ballancer and flexplate for '70s can be used, those must be for a newer than '82 5.0/302, no exceptions...

    OF MAJOR IMPORTANCE, You'll need a throttle valve cable for the AOD that are generally aftermarket or maybe for a early '80s Crown Vic, T-Bird, etc(carbed and AOD application)... If you don't connect it or do it improperly, the trans will slip and clutches/band will be burned almost immediately...
     
  7. Mr Nick

    Mr Nick One with many questions

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    The one that runs to the carb right?
     
  8. groberts101

    groberts101 Member

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    yep, that's the one he's talking about. There are adjustable ones similar to the throttle valve(TV) cable used on the GM stuff in that they are a ratcheting style in which you set them a bit too short and mat the pedal till they "ratchet out" to the correct setting. This allows line pressure to rise more quickly yet still allows maximum stroke length to prevent hanging up before WOT is reached at the carb.
     
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  9. Mr Nick

    Mr Nick One with many questions

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    Okay cool.
     
  10. Mr Nick

    Mr Nick One with many questions

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    If you look real closely, she's a roller
    also, someone sold a block on here awhile back with XXX in the valley, which I happen to have as well
     

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  11. Krazy Comet

    Krazy Comet Tom

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    Then it also has the spider that holds the roller lifters in position...

    All this means it isn't a 1985 F-150 engine as they never had a roller cam, at least from factory...

    Check the spark plugs to see if they have 1/2" or 3/4" of threads...
     
  12. Mr Nick

    Mr Nick One with many questions

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    1/2"
    original plug #44c awsf
     
  13. Krazy Comet

    Krazy Comet Tom

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    You mean it looks like this???

    [​IMG]

    OR like this??

    [​IMG]
     
    Last edited: Jun 27, 2015
  14. Mr Nick

    Mr Nick One with many questions

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    The first one
     
  15. Krazy Comet

    Krazy Comet Tom

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    Well it isn't a F-150 engine, they never used the longer shank plugs(early versions of those plugs used threads all the way up to seat, why I asked if were 3/4")...

    What you have is the Lo-Po 150Hp 5.0 that was used in Crown Vic, Grand Marquis, Town Car, T-Bird/Cougar from '86 till '91(though not that late on all models)... All those engines used a wimpy roller cam with the restrictive E6SE heads that require the longer plugs... Sooo you're back to needing a steel gear on dist...
     

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