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Buick 350 vs 225

Discussion in 'Early CJ5 and CJ6 Tech' started by Txjake, Oct 1, 2007.

  1. Oct 1, 2007
    Txjake

    Txjake I wrenched with Sparky

    Oklahoma City OK
    Joined:
    Feb 3, 2006
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    544
    anybody know the weight difference between the two? will a Dauntless flywheel work on the 350? any other tips on a swap into an ECJ5?
     
    Txjake, Oct 1, 2007
    #1
  2. Oct 1, 2007
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Sep 23, 2002
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    12,529
    Don't know the weight difference but the Dauntless flywheel is balanced different from a 350. I believe the crank bolt pattern is the same though. You'll need a 350 flywheel or have a 225 flywheel balanced for the 350. Nickmil
     
    nickmil, Oct 1, 2007
    #2
  3. Oct 1, 2007
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    5,349
    The Bucik 350 weighs in around 450 lbs, its the lightest of GM's iron small blocks. The heavy flywheel will work so long as you have it rebalanced to the engine, otherwise find a Buick small block v8 flywheel. There was a member along time ago who had a Bucik 350 in his jeep.

    You will need to move the radiator forward and shorten the grill frame box.
     
    Last edited: Oct 1, 2007
    Mcruff, Oct 1, 2007
    #3
  4. Oct 1, 2007
    jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Oklahoma City, USA
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    May 18, 2006
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    Would a late-CJ V8 grille/radiator work?
     
    jayhawkclint, Oct 1, 2007
    #4
  5. Oct 1, 2007
    jd7

    jd7 Sponsor

    Nacogdoches,Texas
    Joined:
    Mar 30, 2004
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    1,745
    grille will...
     
    jd7, Oct 1, 2007
    #5
  6. Oct 1, 2007
    Txjake

    Txjake I wrenched with Sparky

    Oklahoma City OK
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    Feb 3, 2006
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    544
    all good info, saw a good deal on a freshly rebuilt 350 and it sent my mind to thinking (it is a bad thing)
     
    Txjake, Oct 1, 2007
    #6
  7. Oct 1, 2007
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Aug 10, 2003
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    23,596
    JMO - that's a lot of engine for an ECJ5. Wagoneer owners that have them really like them. Moves a Wagoneer around very well.
    No wackier than a 401 in an Intermediate I suppose, but those start off with a somewhat stronger drivetrain.
    It's a great swap for a Jeepster with a TH400 though.
     
    timgr, Oct 1, 2007
    #7
  8. Oct 2, 2007
    Andycj5

    Andycj5 Member

    Chattanooga TN
    Joined:
    Sep 19, 2004
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    56
    I have a 1972 Olds with a 350 rocket in it.
    The thought of driving my CJ5 with that engine in it scares the crap out of me!
     
    Andycj5, Oct 2, 2007
    #8
  9. Oct 2, 2007
    sammy

    sammy Coca-Cola?

    Albuquerque, NM
    Joined:
    Jul 1, 2007
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    1,577
    That's Andrew (handle on here is 1970CJ6) he swapped the F Head for a Buick 350.

    I've seen the JEEP, very nice and clean install, not much mod work? Maybe talk to him about it if he doesn't chime in on here.
     
    sammy, Oct 2, 2007
    #9
  10. Oct 2, 2007
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    5,349
    Nope, he may have one but its not him, this member owned a cj5 and hasn't been around in about 5 years.

    edit: Found his username I think, its dauntless, he had a 350 buick and sm420 he hasn't been around since december of 2004, he lives in arizona.
     
    Last edited: Oct 2, 2007
    Mcruff, Oct 2, 2007
    #10
  11. Oct 2, 2007
    sammy

    sammy Coca-Cola?

    Albuquerque, NM
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    Well for any myths I bet Andrew could put it to rest, he did it all. He has an auto but ya.
     
    sammy, Oct 2, 2007
    #11
  12. Oct 3, 2007
    1970CJ6

    1970CJ6 new mexico air

    rio rancho, new...
    Joined:
    Nov 29, 2005
    Messages:
    630
    Yes I have a Buick 350 in my 70 CJ6.
    Just got back from a 3000 mile trip in 5 days. I am beat.
    Will get more info tomarrow
    Jake you bought the front drive shaft from me.

    Andrew
    Rio Rancho New Mexico

    pm me
     
    1970CJ6, Oct 3, 2007
    #12
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