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Hot Rods Let's talk Cadillac 331's, 365 and 390's

Discussion in 'The Hokey Ass Message Board' started by Roothawg, Apr 7, 2016.

  1. clunker
    Joined: Feb 23, 2011
    Posts: 1,335

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    55 intake fits on 60 block like a glove. A love glove.
     
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  2. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    That was the first thing I saw when I read the article. Not sure where that came from.
     
  3. Dimadee
    Joined: Feb 19, 2013
    Posts: 97

    Dimadee
    Member

    58 intake fits a 390 like a glove too....check out my avatar!!
     
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  4. seabeecmc
    Joined: Jan 28, 2005
    Posts: 767

    seabeecmc
    ALLIANCE MEMBER

    About to first time fire the rebuilt '57 Cadillac 365. Whipped up this oil pump priming tool. Cut an old distributor gear down to clear cam. Used Chevrolet shaft (it's longer) Made aluminum spacer to fit block and accept hold down clamp. Be sure to spin drill motor in reverse. I realize it's not Rocket Surgery but may help someone. Ron prime.jpg
     
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  5. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    OK, I'll bite. Why in reverse? I'm a Caddy newbie.
     
  6. draggin'GTO
    Joined: Jul 7, 2003
    Posts: 1,754

    draggin'GTO
    Member

    Probably because it ain't a small-block Chevy.;)

    Pontiacs are the same as the Caddy, the distributor rotates counter-clockwise and drives the oil pump.
     
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  7. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Man, that explains a lot. A buddy of mine was having a heck of a time getting his 365 to run. Couldn't get it in time. Same firing order, different direction. It all becomes clear now...
     
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  8. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Anyone know if these are the grommets for the valve covers (to hold the wires)?
    At first I said yes, but it says it requires 4 per car, so I am wondering.

    https://www.opgi.com/cadillac/CE12198/
     
  9. clunker
    Joined: Feb 23, 2011
    Posts: 1,335

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    Are those the same grommets as from Steele?
    [​IMG]

    They should fit the original valve covers, there are only two prongs, but maybe two others are meant to free float? Probably not.

    [​IMG]

    I really dig my old valve covers, but I just could not get them to seal no matter what I did. Oil drip drip drip. I got the aluminum Offy repops, (which are just as cool), they seal great with cork gaskets, dry. I only wish they weren't polished.
     
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  10. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Really? I wonder if you could make the newer styled sbc rubber gaskets fit? I love those new style gaskets, they seal every time. I am asking , so that I can know what to do with the original covers. Trying to plan whether to chrome them, paint them etc. I was planning on keeping the loom holders, but only if I can use them. If they don't make the replacement grommets, I will cut them off.
     
  11. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

  12. clunker
    Joined: Feb 23, 2011
    Posts: 1,335

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    Didn't try the sbc gaskets, but I know what you mean. I have had better luck with cork, but I suck at getting things not to leak. If you try it and it works well let us know.

    For myself, if I ever get a chance to build an A with a 390, with the motor exposed, I probably would rather have the original covers, because I really like old looking stuff. I probably won't even repaint the engine after I rebuild it. But my motor is in a Caddy, all buried in there, crap everywhere, so to me the Offys look better in that situation, makes the engine pop.

    Weren't you gonna put adjustable Stude rockers in yours? Did you have to dimple the covers?
     
    Last edited: Feb 19, 2017
  13. 42merc
    Joined: Dec 19, 2010
    Posts: 387

    42merc
    Member

    That's a nice piece of work.
    I took a different approach-quick & dirty. I can even loan it out without fear of not getting it back.
    P1020409.JPG P1020410.JPG

    Stuff on the bench, 2 pieces of tubing 1 piece of 1/2" rod, weld together.
    About ten minutes of fartin' around. If I ever did another Caddy, I wouldn't be able to find it anyway.

    P1020405.JPG

    All this happened a couple of weeks ago.
    Freshened a 390 to replace the 365 in my '40.

    P1020412.JPG P1020413.JPG P1020414.JPG

    Installed & running, 262 Isky, Holley 600 & painted valve covers so the kids know what they are looking at.
    Saginaw 3 speed with OD & an 8" Ford rear. This is a ROAD CAR, no multi carbs, no wild cams.
    It works.

    I agree, the tin covers are tough to seal, but it can be done.
     
    Last edited: Feb 20, 2017
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  14. clunker
    Joined: Feb 23, 2011
    Posts: 1,335

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    Love it. I really like the old covers in there! I dig a 390 poking it's head out from a hole it kicked another gopher out of.
     
  15. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    I didn't realize they leaked that bad. I may not run the stude rockers. I have a set, but I am undecided.
     
  16. rod1
    Joined: Jan 18, 2009
    Posts: 478

    rod1
    ALLIANCE MEMBER

    My Caddy motor didn't leak any worse than my Hemi does. Marking their territory, as they say.
     
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  17. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    These are always an option. [​IMG]
     
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  18. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Where did you score that intake?
     
  19. 42merc
    Joined: Dec 19, 2010
    Posts: 387

    42merc
    Member

    The intake was picked up at the Kalamazoo, MI Nats North a while back.

    As far as the PML covers go, I won't put $500 valve covers (polished) on a $400 motor.
     
  20. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Who makes the intake?
     
  21. 42merc
    Joined: Dec 19, 2010
    Posts: 387

    42merc
    Member



    Cal Connel / DRE.
     
  22. Jessie J.
    Joined: Oct 28, 2004
    Posts: 327

    Jessie J.
    Member

    Once upon a time ....
    Good luck with finding one now. Better have a bushel of $$$$.
     
  23. falconsprint63
    Joined: May 17, 2007
    Posts: 2,228

    falconsprint63
    Member
    from Mayberry

  24. seabeecmc
    Joined: Jan 28, 2005
    Posts: 767

    seabeecmc
    ALLIANCE MEMBER

    Learn from my mistake.
    Manual states "Install rocker arm assembly in position on cylinder head with notches on each end of rocker arm shaft pointing downward and toward center of engine"
    Ran primer pump for a while. Left bank oiled fine. Right not so much. See first photo. Engine as received from machine shop had Right bank rocker arm shaft indexed incorrectly. Notch faced out.
    If you're reading this you may also be able to help me locate the missing oil filter restrictor fitting. Ron shaft4.jpg shaft3.jpg shaft2.jpg shaft1.jpg
     
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  25. 42merc
    Joined: Dec 19, 2010
    Posts: 387

    42merc
    Member

    I'll post a pic of a bottom (discharge) fitting from a '59 Cad filter.
    It's a 90 degree fitting, '57 fittings are straight.
    It's a restricted fitting.
    I'm showing a #30 drill (.128") in the passageway.
    If you don't have a restricted fitting solder a standard fitting closed & drill with an 1/8" (.125") drill bit.
    I do this with flathead Fords a lot. Old Fords require a .060" hole.

    Sorry for the poor pics, it's the best I can do.

    EDIT: I must temper my thinking about the resricted fitting. After my post I went thru several 1/8 to 3/16 tube fittings & discovered all were drilled with about the same size hole, 1/8" + or - .
    Hindsight thinking says the bottom filter fitting is a standard item for 3/16 tubing.
     

    Attached Files:

    Last edited: Apr 9, 2017
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  26. Glad you caught the screw-up on the rocker shaft now, before you ran the engine. Both of my Cad engines had them assembled incorrectly by PO... cost me two sets of new rockers and shafts to make them right.
     
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  27. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    Is this true if you are converting to the Studebaker? I know you mix and match pieces, but I am unsure of what pieces go where. Don't wanna ruin my stuff. Are there any old hot rod articles? No one around here knows squat about it.
     
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  28. 42merc
    Joined: Dec 19, 2010
    Posts: 387

    42merc
    Member

    I don't know why you're hung up on the Stude rockers. I think they are a step backwards.
    Since you have Stude rockers & a torn down 390 Cad, put a Studey rocker on the 390 shaft next to the to a 390 rocker.
    Measure the center line of each push rod socket to the shaft & see what you really have.
     
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  29. Roothawg
    Joined: Mar 14, 2001
    Posts: 17,143

    Roothawg
    Member

    I spoke with the tech guy at Schneider Cams and he said in order to run the cam I want, I would need the adjustable rockers. If possible, I would prefer retaining the Cadillac.
     
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  30. cretin
    Joined: Oct 10, 2006
    Posts: 2,600

    cretin
    Member

    I did a set recently for a 331. According to my research, you swap the stude rockers onto the Cadillac rocker shafts.

    [​IMG]

    [​IMG][​IMG]


    Sent from my iPhone using The H.A.M.B. mobile app
     
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