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Technical Replacing a Ford 390 with a 354/392 hemi

Discussion in 'The Hokey Ass Message Board' started by winr, Mar 21, 2022.

  1. winr
    Joined: Jan 10, 2008
    Posts: 296

    winr
    Member
    from Texas

    I have a ton of FE parts I could sell to finance a gen 1 hemi for my old truck
    Does not need to be fancy, always wanted a hemi for the looks
    Truck only goes to car shows and cruise ins, no racing

    What is a realistic $$ amount I am looking at please ??

    Then again, I may be off my rocker ... lol

    Ricky.
     
  2. How old is the truck?
     
    winr likes this.
  3. RmK57
    Joined: Dec 31, 2008
    Posts: 3,042

    RmK57
    Member

    If your FE parts are of the 427 or 428 CJ variety that will sure help offset the cost of an early Hemi.
     
    winr likes this.
  4. tubman
    Joined: May 16, 2007
    Posts: 7,946

    tubman
    ALLIANCE MEMBER

    What are you planning on using for the transmission?
     
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  5. hemihotrod66
    Joined: May 5, 2019
    Posts: 968

    hemihotrod66
    Member

    I think building an old hemi is about the same cost as your FE stuff...The go to place for old hemi parts is Hot Heads Research and Racing.... Wilcap use to be the go to people for adapters but they may be going away....Bottom ends in Chrysler engines were pretty good with forged cranks in all engines until 1972...
     
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  6. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,330

    FrozenMerc
    Member

    $10,000+ for a good, high quality rebuild, assuming you do most of the work your self, including core and machine work. Then whatever you plan on spending to replace the trans. Plan on another $2K or so for a rebuilt A518 auto to go behind the hemi, unless you have a 727 holding the bench down. Then a whole pile of nickles and dimes for all the other stuff you have to change, modify or switch. I.E. Rad hoses, fan shroud, motor mounts, transmission mounts, exhaust, drive shaft, steering linkage, throttle linkage, etc...
     
    Last edited: Mar 21, 2022
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  7. Malcolm
    Joined: Feb 9, 2006
    Posts: 8,158

    Malcolm
    Member
    from Nebraska

    I'd just stick with the 390 Ford :)
     
    deadbeat, Joe Travers, winr and 4 others like this.
  8. Callmaker
    Joined: Feb 17, 2020
    Posts: 170

    Callmaker
    Member

    Ain't nuthin wrong with an FE:cool:
     
  9. Boneyard51
    Joined: Dec 10, 2017
    Posts: 6,751

    Boneyard51
    Member

    I vote for the FE! But like all engines the FE part are totally dependent on the parts numbers. A set of heads that “ look” almost alike can change the price from $100 to $2500 . Same way with the blocks. 95 % of the FE blocks are worth about $250, but a few are worth more than $2500 and all this is the relatively easy stuff to find. If you go exotic FE stuff , if you have to ask the price, you cannot afford it.
    I saw an ad yesterday for a set of original 1965 up long tube iron exhaust in good shape going for $2800! I taking my set to the bank and see if they will fit in my safety deposit box!








    Bones
     
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  10. Stan Back
    Joined: Mar 9, 2007
    Posts: 2,639

    Stan Back
    Member
    from California

    Well, if you like the looks of it, you could do what I did 20 or so years ago (just for a short time). This is the DeSoto's answer to a 327. Fooled half the town's street rodders for a while.

    DeSoto.jpg
     
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  11. lostone
    Joined: Oct 13, 2013
    Posts: 3,446

    lostone
    Member
    from kansas

    A good buddy of mine passed away a few months back and raced ford's forever.

    In his stash was an original 427 side oiler Nascar block still in its crate, a set of rods and crank for it. Don't know what happened to that stuff. Figured with a couple garages full of ford parts that wasn't the only gems in his collection.

    .
     
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  12. winr
    Joined: Jan 10, 2008
    Posts: 296

    winr
    Member
    from Texas

    Thanks much for all the reply guys !!

    Sorry for the long post, thought some background would help
    .....................

    65 short F100 ....
    I have 3 390 service blocks, I had bored one .040, Forged pistons with .083 shaved off the tops

    2 nice 428 cranks, was going to use one in the .040 over to make a 418

    I have 3x2, 2x4, and 1x4 intakes with 30 or so different carbs, C6, C4 and 4 speed transmissions
    Bellhousings, steel/aluminum flywheels, pressure plates/disks

    4 sets of heads, 1 set is mildly ported with CJ size valves

    Enough inserts, pistons, rings and gaskets to build 8 or 9 engines

    2 sets of full length SS headers and a bunch of other stuff

    Thought I could sell the above to offset a hemi perhaps

    I do my own work and build everything but pay for machining

    I have worked on FE's for over 40 years and always wanted a Hemi

    What about those hemi heads that fit an RB engine ??
    Any have experience with them ??


    Ricky.
     
    Last edited: Mar 21, 2022
    Desoto291Hemi likes this.
  13. Sounds like a killer FE set up.
    Hemi will depend on core. A331 is a good bit cheaper than a 392.
    Machine work is basically a wash.
    Hemi parts will cost more than the FE.
    A basic master kit for a Hemi is 2 to close to 3 times that of a Hemi
    Heads? If wanting adjustable rockers then that’s probably the biggest cost over FE heads if ya already got em. But if not the Hemi adjustable ones are more expensive.
    then hooking up a trans $$$
    But as far as performance, an FE built with your pieces will be stout.
    Just my worthless opinion, I think I’d rather have the FE in that year F100.
    But I’m with ya all the way to fulfill that Hemi dream
     
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  14. A company named Stage 5 (I think that’s it) built RB hemi heads.
    I only know what I’ve read about ‘em.
     
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  15. deathrowdave
    Joined: May 27, 2014
    Posts: 4,855

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    No thinking to this question for me . FE all the way .
     
  16. tubman
    Joined: May 16, 2007
    Posts: 7,946

    tubman
    ALLIANCE MEMBER

    I'm really an early hemi guy (check my Avatar) and have never had an FE, but I gotta agree with stayin' with the Ford.

    Save the Hemi for something that doesn't have a hood.
     
  17. 51 mercules
    Joined: Nov 29, 2008
    Posts: 4,215

    51 mercules
    Member

    I like hemi's! I have one in my merc![​IMG]
     
    Last edited: Mar 23, 2022
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  18. winr
    Joined: Jan 10, 2008
    Posts: 296

    winr
    Member
    from Texas

    Pic
     

    Attached Files:

    Last edited: Mar 22, 2022
  19. deathrowdave
    Joined: May 27, 2014
    Posts: 4,855

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    Keep the FE it’s just as nostalgia as a Hemi and it’s a Ford . If you really want a Hemi , sell all unused FE parts and buy SOHC stuff , build a real Winner
     
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  20. mohr hp
    Joined: Nov 18, 2009
    Posts: 1,431

    mohr hp
    Member
    from Georgia

    I say keep your FE stuff too! I get the appeal of the Hemi. I was a BBC guy forever, but the lure of those huge valve covers is intoxicating, so I decided I needed a 426. I bought a tired 80's top fuel engine, and ended up replacing almost everything in it! Learning a whole new platform can get expensive. The early Hemi is only slightly less expensive than the Gen 2. Both make big power, but every piece will make you question your budget limits. Just usual maintenance stuff like gaskets are not in any way related to SBC price structure. Seems all the parts manufacturers figure if you can own a Hemi, you have no budget limitations, but it's really because of economy of scale limits. Many Hemi parts places are mom and pops or cottage nitro suppliers, that produce in small batches. Also, those stage 5 Heads are beautiful, but they made more sense when 426 blocks were non existent. There's a definite shortage now, but they can be bought. Energy Manufacturing, via Callies is coming out with a new iron 426 block and last I checked they expect only $6,000(!) Good usable early Hemi blocks are getting scarce too.
     
    Last edited: Mar 23, 2022
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  21. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,330

    FrozenMerc
    Member

    Just one of those age old questions, isn't it.

    This??
    [​IMG]

    Or This???
    [​IMG]
     
  22. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 33,583

    Jalopy Joker
    Member

  23. But that's a late hemi, not what the OP asked about. Although, a late hemi in a late truck would make more sense.
     
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  24. winr
    Joined: Jan 10, 2008
    Posts: 296

    winr
    Member
    from Texas

    I would take either ( of course ) .. :)

    Ricky.
     
  25. deathrowdave
    Joined: May 27, 2014
    Posts: 4,855

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    If I had nothing and starting from scratch . The Hemi would be my choice , if I owned an FE , I’d dress up in Nija PJs and go see Sonny Barger before I’d swap it out . Go for broke and 429 Shotgun Hemi and get really rare .
     
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  26. winr
    Joined: Jan 10, 2008
    Posts: 296

    winr
    Member
    from Texas

  27. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,330

    FrozenMerc
    Member

    I am aware. The OP also has a 390 now, not a 427. Though it is a lot harder to tell a 390 apart from a 427, except for that row of 3 little bolts across the bottom of the block skirt, they are virtually identical appearing.

    Also, the 427 FE and 426 Hemi competed against each other directly, on the same tracks in the mid 60's. The same can not be said about the 390 FE and 392 Hemi. It was 3 years after production of the 392 ended before the 390 was released by Ford.

    This would have been a more apt comparison, but 368 Lincoln Y's are even harder to find than 392's.

    1....
    [​IMG]

    or 2.....
    [​IMG]
     
    Last edited: Mar 24, 2022
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