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302 efi to carb ?

Discussion in 'The Hokey Ass Message Board' started by wyoming, Jan 19, 2008.

  1. fast Ed
    Joined: Aug 12, 2007
    Posts: 207

    fast Ed
    Member

    Don't I know it ... I've been a Ford parts guy for almost 20 years, run in to that all the time. :rolleyes:

    One-piece rear main started in mid-1983 model year, so there should be some non-roller one-piecers out there too.


    cheers
    Ed N.
     
  2. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    Yes all 302/5.0 blocks (from about 1986 as '85 GT blocks were new castings and only went into Mustangs) will accept and operate with OEM Roller lifters and cams with the instalation of the spider and "H" tie bars for the lifters, but ALL engines WERE NOT roller equipt from '85 and up.

    On my home PC I have a chart that lists every single rolller cam grind Ford ever put in a 302/5.0 and the car it went into. I will post it tonight if I can remember to do so.

    When it comes to late model 302/5.0 and Mustang specs and information, There is very little I don't know. In fact I often forget things until later and then have to edit things. If you want to argue late model Mustang engine facts with me, you're gonna need to be ready to back up your information.
     
  3. The Big M
    Joined: Dec 22, 2005
    Posts: 232

    The Big M
    Member

    That's only true for the H.O. motors. The SEFI 5.0's in the Crown Vic/Grand Marquis (non-H.O.) used 1-5-4-2-6-3-7-8. My '87 Grand Marquis used that firing order, and it's definitely a roller cam. So it is possible to have a non-H.O. roller motor.
     
  4. fast Ed
    Joined: Aug 12, 2007
    Posts: 207

    fast Ed
    Member

    Correct ... non-HO passenger, and the flat-tappet trucks (to 93 model year) used the old 289 / 302 firing order and injector sequence. Truck 302s got the 1-3-7-2 order when they went to roller cam and mass air flow with sequential EFI system in 1994 model year.


    cheers
    Ed N.
     
  5. fast Ed
    Joined: Aug 12, 2007
    Posts: 207

    fast Ed
    Member

    I think the one exception to this would be the 1985 model year throttle-body injected (CFI) HO engines used with the auto. trans in the Mustang, Capri, LTD LX, Marquis LTS, and Mark VII. Those were the 175 hp version (some literature says 165), and AFAIK, they were still flat tappet.


    cheers
    Ed N.
     
  6. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    And I've seen more than a couple non-roller Crown's, Grand Marquis and trucks from after '87. This was a change over period and not everything got a roller cam.

    I never said non-H.O. roller's didn't exist.
     
  7. The Big M
    Joined: Dec 22, 2005
    Posts: 232

    The Big M
    Member

    Sorry, I should have said it's possible to have a roller 5.0 with the "289/302" (1-5-4-2-...) firing order. Your post implied that all roller cams used the 351W firing order, which isn't correct.

    I just tend to differentiate the H.O. and non-H.O. motors by their firing order.
     
  8. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    Other than pistons ('85-'91 H.O. factory pistons were forged), the H.O. engine was identical to non-H.O. engines. Most H.O. engiens got the E7TE head, but not all did. There were small variations, but the biggie was the pistons and the better (smoother, less vibration causing) 351W firing order. So seeign them as H.O. or non-H.O. is how I see them too.
     
  9. wyoming
    Joined: Feb 15, 2007
    Posts: 394

    wyoming
    Member
    from My house

  10. FoMoCoPower
    Joined: Feb 2, 2007
    Posts: 2,493

    FoMoCoPower
    Member

    an `88 Grand Marquis SHOULD HAVE a roller camshaft.....therefore a steel distrubutor gear is required...a cast gear as used on non-roller cam motors will not survive!!! You need to get a distrubtor made for a 1985 Mustangt 5.0 V-8 with a manual transmission.

    You must specify 1985 5.0 and a manual tranny! The Automatic Mustangs in 1985 had a Throttle-Body injection system and the distributor is a bit different.

    You will also need the Durspark ignition box,and look for a wiring diagram online,just "google" it....
     
  11. FoMoCoPower
    Joined: Feb 2, 2007
    Posts: 2,493

    FoMoCoPower
    Member


    Only the HO motors used the 351w firing order,a standard non-HO roller cam 302 will have a standard 302 firing order!
     
  12. FoMoCoPower
    Joined: Feb 2, 2007
    Posts: 2,493

    FoMoCoPower
    Member

    ....i beg to differ....
     
  13. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    Once again... I will say it... this is not true. This is a left over myth from the early days of the roller cam. You only need a steel distributor gear that fits the distributor you want to run.
     
  14. FoMoCoPower
    Joined: Feb 2, 2007
    Posts: 2,493

    FoMoCoPower
    Member


    Wrong again,all of the sepentine system vehicles used reverse rotation...
     
  15. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    You had better learn how to read. I said in the quote of me you used that the 302 H.O. used the same firing order as the 351W. Not once did I talk about non-H.O. roller cams. If you can't understadn what I wrote you had better go study elementary English again.
     
  16. FoMoCoPower
    Joined: Feb 2, 2007
    Posts: 2,493

    FoMoCoPower
    Member



    1985 was the first year actually....
     
  17. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    You are wrong my friend. Those cars don't use reverse coolant systems and they are serpentine.
     
  18. MercMan1951
    Joined: Feb 24, 2003
    Posts: 2,654

    MercMan1951
    Member

    I'll add fuel to the fire:

    The 1988 Lincoln Town Car I had was not a true serp setup, (it did have 5-rib flat belts), but used two separate belts on the front of the engine, and had a standard rotation water pump. Apparently, so did my 1990 T/C, I bought a pump for it and never used it before selling it. I put it on my current engine, because NAPA part numbers said it's a standard rotation.

    I had a 1990 and an '88 Lincoln Town Car with the 5.0 F.I. engines that were not roller or reverse rotation engines. Also had an '88 Cougar XR-7 with a 5.0 F.I. that was not a roller engine. But I'm 99.9% sure that one WAS a serpintine setup (reverse flow) because of the size of the engine bay, (it was basically a Mustang).

    The rumor I heard, was that before Ford phased out the 5.0 in regular production (non-Mustang) cars before/around 1991, some leftovers towards the end of the line got the roller treatment. In 1991, Ford started using the 4.6 in Town Cars. By 1992 the Crown Vic and Grand Marquis followed suit with their redesigned bodies as well. The 302 was still found up until 2001 in Exploders. They were rollers. Not sure about the F-150 applications. I've got one of the last ones made in my Mercury now. It was destined for a Exploder, the numbers decode as a 2001, and it has the GT-40P heads, the 351W (302 HO) firing order, and is a roller- but went to Roush for "testing" and never was put into a car before mine. I had to get a different front cover to run a mechanical fuel pump, and find an eccentric for the cam, which meant I had to also go with a different timing set. Check it out here:

    http://landyachts.homestead.com/mercresto8.html

    The general rule of thumb I have gone by is that if it's a "corporate" 302 (i.e. non-Mustang or Lincoln Mark 7) it's NOT a roller. Be plesently surprised if you find out otherwise. Confused yet? :)
     
  19. The Big M
    Joined: Dec 22, 2005
    Posts: 232

    The Big M
    Member

    Yup.

    I guess it's time to find the date code on my 5.0 roller block...
     
  20. MercMan1951
    Joined: Feb 24, 2003
    Posts: 2,654

    MercMan1951
    Member

    What was it originally out of? The 87 Marquis? Have you actually seen inside your engine? This is getting interesting! I'd heard a rumor about some Grand Marquis and Crown Vics floating around with roller engines, but never believed it...
     
  21. crossthread
    Joined: Mar 9, 2006
    Posts: 103

    crossthread
    Member

    Hi Well let me start by saying I had the donor Crown Vic. for numbers checking 1987 year with a '86 5.0 roller with double belted crank pulley and standard rotation water pump. and e6te heads .I have a '95 van engine beside it to check between the two as far as rotation [look at the back plate on water pump you will see the different shape and direction of the inlet outlet holes. Oh yeal! old time SBF firing order . Later Jimb.
     
  22. wyoming
    Joined: Feb 15, 2007
    Posts: 394

    wyoming
    Member
    from My house

    man i didnt mean to star a fight
     
  23. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    You didn't start a fight. Ford just did so many different things that it gets confusing.

    Let's not even get started ont he SAE/Metric fasteners mixture during these years...... lol
     
  24. but you have to admite it is pretty funny
     
  25. The Big M
    Joined: Dec 22, 2005
    Posts: 232

    The Big M
    Member

    Yes, it's from the '87 Marquis, and I have the intake manifold and one head removed right now. I believe it's the original engine, but I'm going to check anyway.

    It's definitely a roller. The "spider" and "dogbones" are there. The belt setup was just like you described, with two flat ribbed belts. One for the alternator, power steering, and water pump, and a second one for the air pump and a/c compressor. I believe the same setup was used in these cars until the switchover to the 4.6. Mustangs, Thunderbirds, and Cougars used a single belt.
     
  26. Bull
    Joined: Mar 17, 2006
    Posts: 2,288

    Bull
    Member

  27. Hellfish
    Joined: Jun 19, 2002
    Posts: 6,711

    Hellfish
    Member

    How do I check that? I have an 89 302 HO and swapped on a Edelbrock Performer manifold and carb, and used one of those HEI type dizzys that someone posted earlier. I don't have the original dizzy for comparison
     
  28. silent rick
    Joined: Nov 7, 2002
    Posts: 5,402

    silent rick
    Member

    joe, don't they have chad's dad's 302 at the shop? ask kevin or chad if it still has the stock distributor.
     
  29. tjm73
    Joined: Feb 17, 2006
    Posts: 3,541

    tjm73
    Member

    M-6605-B302 is the Ford Racing oil pump shaft for 87-95 H.O. engines.

    Quote from Ford Racgin Catalog "1987-95 5.0L Fits EFI and Non-EFI" List price $16.95
     
  30. Hellfish
    Joined: Jun 19, 2002
    Posts: 6,711

    Hellfish
    Member

    if it fits both... then isn't it the same one?
     

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