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Cadillac 500

Discussion in 'The Hokey Ass Message Board' started by Gearstix, Dec 21, 2008.








  1. I have a 472 sitting in a shop that I ran years back.................stock , but a hard spirited bastard! 160k miles.

    I keep thinking--what if i dropped it in one of these? 1,900 pounds, back of the engine is 50" from the front axle. Powerglide mated to a torque-tube, and a quick change. HAVE SOME BALLS, TELL ME WHAT YOU REALLY THINK. I am so tempted to run it on dirt.




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  2. metalshapes
    Joined: Nov 18, 2002
    Posts: 11,130

    metalshapes
    Member

    That is what has kept me from using mine, sofar...

    But I guess with some valvetrain improvements & a bigger cam it can be made to rev a bit higher.

    How costly is that?
    What kinda redline is practical for a street engine?

    And after that, the biggest thing is making it breathe, right?
    ( I was thinking a U-Fab type intake with about 6 or 8 carbs, and headers...)
     

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  3. Gearstix
    Joined: Dec 21, 2008
    Posts: 194

    Gearstix
    Member

    Hmm. I'm not sure If I'm going to do the swap in my pickup. Gunna have to find out the cost of the engine, a transmission, mount kit, etc.
     
  4. Scott Danforth
    Joined: Dec 13, 2008
    Posts: 261

    Scott Danforth
    Member

    You could simply put a turbo on the 2.2 to accomplish that. A built V6 will do the same and sound better than the turbo 2.2 as well as fit. An SBC will put a grin on your face from ear to ear and still fit and get you up to 24 mph on the highway. The Fat Caddy is too big for the S-truck engine bay period. So you will be moving the firewall, re-building the trans tunnel, removing the inner fenders, and possibly doing some suspension work, especially if you intend to bag it for the simple fact that the track width is narrow, the engine bay is short and the firewall is too far forward from most anything. At 5" wider than the SBC or V6, you will also run into the brake booster. At 3" longer than the SBC you will have to move the firewall back 3" or stretch the front end by 3".

    If I read correctly that this is a Blazer, then you are only dealing with 108" wheel base. you will have to make sure that your rear doesnt change geometry too much using bags as the driveshaft will need to be about 2' in length.

    My recommendation is if you want to keep the fat caddy, then find something with a larger hole to stuff it into. If you want to keep the Sonoma then sell the caddy to pick up something that will fit into the vehicle without a year of fabrication work. A LT1, LT4, LS1, LS2, LS6, etc. If you are still intent on putting the caddy engine in the truck, then pull the body off the truck, put the engine and driveline in the truck, then start hacking at the body to drop it on.
     
  5. 1970 was the last year for high compression. I bought a 70 eldo with the 500 supposed to have only 1200 miles on a fresh rebuild. had to pay $400 about ten years ago. drove it home and haven't started since. I also have a good set of 68 472 heads. is there any advantage to the early heads?
     
  6. DRD57
    Joined: Mar 5, 2001
    Posts: 4,251

    DRD57
    Member

    Here's what you need to get the valve train ready for some higher RPM's.

    [​IMG]

    I got the stuff from Schrader's Speed & Style. Don't remember the actual cost but it was very reasonable. The purple anodized bits are the only custom parts. They allow the adaptation of the shafts and rockers from a different engine, I think it was a Buick.
     
  7. metalshapes
    Joined: Nov 18, 2002
    Posts: 11,130

    metalshapes
    Member

    Thats good Info.

    Thanks.
     
  8. oldsman71
    Joined: Apr 9, 2008
    Posts: 1,037

    oldsman71
    Member

    I like the caddy TQ but you may be better off with an sbc swap,(you said it didnt have to be a race car) a sbc swap would be reletively simple and would probly put out all the power you would need. your car, but thats my thoughts hope it works out
    witchever way you do it!! later cobey/o.m.71
     
  9. Gearstix
    Joined: Dec 21, 2008
    Posts: 194

    Gearstix
    Member

    I haven't boughten the Cadillac engine yet. My truck is a regular cab fleetside. Its not a Blazer.
    Plus with a SBC, I can purchase everything I need to put the engine in my truck.
    I want to go with something carb'd. I don't really want to deal with computers and stuff. I want something that is as simple as possible.
    Hard thing is for me to find a SBC. I know everywhere else you can find them cheap and stuff, but not me. I've got a 305 myself, but I'm going to throw it out. Its in really rough shape, and sat outside in the snow uncovered.

    I've priced out a longblock engine. I think around $1700 I could have a rebuilt 283 shipped from Spokane, WA to here.
    I think the SBCs from them were cheaper.
    I would like to find a source closer to home.

    Does the Caddy have a place for a mechanical fuel pump?

    Have a look at this
    http://www.jagsthatrun.com/S-10_Order.html
    I think there's everything on that site for a V8 swap in my truck
     
  10. Fishtail8
    Joined: Jul 18, 2007
    Posts: 366

    Fishtail8
    Member

    You're in Alberta and you can't find a SBC? I could find 10 of em tommorow, you must be looking in all the wrong places. What major city are you by?
     
  11. Gearstix
    Joined: Dec 21, 2008
    Posts: 194

    Gearstix
    Member

  12. Fishtail8
    Joined: Jul 18, 2007
    Posts: 366

    Fishtail8
    Member

    Well, Ft Mac is far from being a car mecca. You might have to scour the classifieds, and buy a cheap runner. Give it a leakdown and a compression test, if it passes that roll it over and pull the pan to inspect some bearings. If that looks ok, roll it back over, swap the intake, camshaft, and stick it in the truck. A 300hp 350 will make that thing snakey.

    You won't find many places in AB offering rebuilt stock shortblocks anymore. There's a reason none of 'em are left around. The stuff they were selling for $900 were pieces of crap, just ask the guys who had to R&R them when they kept blowing up. Something will come your way...
     
  13. Gearstix
    Joined: Dec 21, 2008
    Posts: 194

    Gearstix
    Member

    See I was gunna buy an engine from edmonton. However most people who emailed me said that I had to buy the whole vehicle and drive it home, and I cannot do that yet as I don't have my full license.
    I may just drop in a new crate. Maybe not. I'm low on cash right now.
     
  14. gpa
    Joined: Jul 28, 2006
    Posts: 38

    gpa
    Member
    from lewis,co.

    Guys and Gals
    That is the beauty of the big inch cadillac, they dont need to to rev high,they make all their power down low. its tough to get used to but once you do,its kick ass. Go to Potter automotive and check out their caddy stuff. They make some serious horsepower, like 750hp and 1000ft torque and under 3500rpm, so if you want rpm get you a small block chevy like everyone else has, or try some reliable,big cube,lightweight, horsepower.
    Phil
     
  15. Mojo
    Joined: Jul 23, 2002
    Posts: 1,872

    Mojo
    Member

    You can also use pontiac th400's on caddy motors. They have short tailshafts like the chevy's, and bolt up using the pontiac convertor. I believe you have to drill new holes in the flex plate, but I might be wrong about that.
     
  16. geargrndr
    Joined: Jul 26, 2007
    Posts: 10

    geargrndr
    Member
    from kansas

    [​IMG]

    [​IMG]

    [​IMG]
     
    Last edited: Feb 4, 2009
  17. geargrndr
    Joined: Jul 26, 2007
    Posts: 10

    geargrndr
    Member
    from kansas

  18. geargrndr
    Joined: Jul 26, 2007
    Posts: 10

    geargrndr
    Member
    from kansas

    Best site I've run across for this swap is www.v8s10.org .As you can see by the pics the swap is possible. The website has a few posts on this swap and also the ford explorer 8.8 axle swap that you would also want to do if you swap to a caddy motor. The stock s10 rear ends barely survive a stock 350 let alone a torquey caddy. Hope this helps! :)
     
  19. Spedley
    Joined: Mar 5, 2004
    Posts: 392

    Spedley
    Member

    I miss the old HAMB........
     
  20. geargrndr
    Joined: Jul 26, 2007
    Posts: 10

    geargrndr
    Member
    from kansas

    LOL. Yea not really the topic I'm used to on the HAMB. Could be handy though for people doin frame swaps.
     
  21. onemintcaddy
    Joined: Feb 7, 2007
    Posts: 375

    onemintcaddy
    Member

    Inspiration,,,,,,,,,,,,,,
     

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  22. KreaturesCCaustin
    Joined: Sep 3, 2008
    Posts: 1,258

    KreaturesCCaustin
    Member
    from Austin, TX

  23. Abomination
    Joined: Oct 5, 2006
    Posts: 6,774

    Abomination
    Member

    You know, Chris from http://www.cad500parts.com is a HAMBer...

    ~Jason

     
  24. bobbytnm
    Joined: Dec 16, 2008
    Posts: 1,726

    bobbytnm
    Member


    Jason,

    yea, I figured that out from a thread about fabbing Caddy valve covers, very knowledgable guy

    Thanks
    Bobby
     
  25. Bluedscrewed&tattooed
    Joined: Feb 25, 2007
    Posts: 112

    Bluedscrewed&tattooed
    Member
    from AUSTIN,TX

    Great motor, and if its a Eldo motor it should have the rear sump. lots of speed parts available as already stated. my only recommendation is a rev limiter. dont over rev a cad 500
     
  26. Not being a GM person but an idea that intrigues me, what would it take to stick a 500 into a '57 Buick do you reckon? (besides $$$$) ...
     
  27. jstanotheidiot
    Joined: Oct 23, 2008
    Posts: 136

    jstanotheidiot
    Member

    If the Eldo had a 500 then its a 452 front wheel drive
     
  28. bobbytnm
    Joined: Dec 16, 2008
    Posts: 1,726

    bobbytnm
    Member

    There is no 452. The 500 family consists of the 500 and the 472 ( I there was even a 512 but my memory is a bit fuzzy), later on things were detuned to the 425 and then down to the 368.
    The Eldo's typically had the larger 500ci engines, while the rest of the line got the 472.

    Bobby
     
  29. metalshapes
    Joined: Nov 18, 2002
    Posts: 11,130

    metalshapes
    Member

    He probably meant the TH425 Tranny...
     
  30. bobbytnm
    Joined: Dec 16, 2008
    Posts: 1,726

    bobbytnm
    Member

    Ah, good point...........that makes more sense
     

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