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caddy bellhousing?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by solowookie, Feb 3, 2002.

  1. solowookie

    solowookie 1/2 ton status

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    OK guys...

    I got a 79 fullsize truck I'm considering on picking up for an investment. interior is in pretty good shape, and body doesn't have any dents or rust.

    I'm wondering if a caddy engine (I can pick up a 472 for $200) can bolt up to the sm465 or sm420, or would I have to go to advanced adapters. I'd have to be able to get a cheap bellhousing, or it would defeat the purpose of purchasing this as an investment.

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    The problem is that the caddy motor's were bever backed by a standard trany from the factory so the rear of the crank would need to be drilled for a pilot bushing. Also the Pontiac, Buick, old's and Caddy bellhousing is diferent than the Chevy so you'll need some sort of adaptor. The adaptor I don't think is any big deal...

    BTW...no vehicle is a good investment. A good investmant always 'appreciates', vehicles as a rule only depreciate or require more capital to maintain the value. I'm sure you already knew that though [​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  3. solowookie

    solowookie 1/2 ton status

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    yea I did already know that... I'm not sure if I'm gonna do this or not. I'm just exploring my option I guess you could say.

    at any rate the truck would be $500, and I can get the engine for $200. I'm assuming the tranny is good also, and that I could get it with the engine for, at the most, $350.

    I'm just exploring the situation. first off I need to check out the axles &amp; everything else. I need to know what kind of condition the drive train is in.

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  4. Sparky87k5

    Sparky87k5 1/2 ton status

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    Rene is correct about the crankshaft needing machine work to install a pilot bearing for manual trans work. BOP bellhousings from cars like early 442's will bolt to Cad engine. There are adapter plates that bolt to these available for mounting an SM420 or 465. OR you can buy a metal plate that bolts to back of Cad engine and bolt Chevy bellhousing to it.

    87 K5, 427/340hp BBC,4.56 D60 & 14BFF, NV4500, NP208, TSM rear disc's,
     
  5. RedDwarf

    RedDwarf 1/2 ton status

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    There's a company down in Lakeland FL that specializes in Caddy mills. They offer adapters too. Don't know if they are any cheaper than Advance or not.

    I think that the torque from a 472/465 combo would be worth the effort, plus you'd have a truck that is a little different. To me, that's always worth the work [​IMG]
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    Stock BOP bellhousing will have too small of a hole for the SM465 input bearing. (I believe they need to be 5") Read something the other day about just opening the hole up though....

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>www.dorianyeager.com/index2.html</a>
    Why insist on counting when the ring gear has the tooth counts stamped in?
     
  7. Sparky87k5

    Sparky87k5 1/2 ton status

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    Cadillac Motorsport Development was in Lakeland, FL but sold the business to The Cad Company in New Mexico. <a target="_blank" href=http://cad500parts.com/>http://cad500parts.com/</a>

    87 K5, 427/340hp BBC,4.56 D60 & 14BFF, NV4500, NP208, TSM rear disc's,
     
  8. solowookie

    solowookie 1/2 ton status

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    hey thanks for the link...

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  9. solowookie

    solowookie 1/2 ton status

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    I don't remember if this thing has an auto or a manual. however, I don't think it would be worth my time to mess with unless it has an auto in it. I don't wanna mess with converting this over, but I might pick up th engine anyway for my hotrod.

    my neighbor has had the truck for awhile, but blew a couple engines in it and its sitting. I've seen the truck around for about 15 years, but never paid any attention to it.

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  10. madmike

    madmike 1/2 ton status

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    Contact a company called "Maximum Torque Specialties" at www.500cid.com, they specialize in Cadillac high performance and vehicle adaptation. Also, the guys at Jp magazine are building a flat fender jeep with a cadillac engine and SM420 combo in the latest issue. TRustyK5 is correct, crank will need to be drilled for a pilot bushing. This swap whether into a jeep or truck sounds excellent, I'd like to try it myself. good luck!

    [​IMG]psychoholicslag
     
  11. Jeff427

    Jeff427 1/2 ton status

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    Solo,
    You may want to check on a diesel bell housing from a diesel pick up that had a 465 tranny. I have heard that the diesels have the BOP bolt pattern, but I do not know this for certain. It may be worth checking into. [​IMG]

    <font color=purple>Jeff427</font color=purple>

    <a target="_blank" href=http://lyonsdesign.bizhosting.com>Lyons Design</a>
     
  12. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Diesels have the standard Chevy pattern, same as SBC and BBC.

    Russ

    85 K30 CUCV, 350 TBI, TH400, 205, D60/C14, 4.56 Locked, 4" lift, 42" tires
    Some day: massive cutting, shorter wb and rear overhang.
     
  13. solowookie

    solowookie 1/2 ton status

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    OK guys now your starting to tempt me... I'm going to pick the engine up, and use it for a future project. I'm going to mate it up to a standard tranny just for the challenge.

    it really would be a sweet combo!

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     
  14. ponderingjunkman

    ponderingjunkman Registered Member

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    To mate a B-O-P car bell housing to a 465 trans, you need to bore out the input bearing retainer hole in the bell housing from 4.687 to 5.125 inches. A decent machine shop can handle this. Want a picture of my set up? It took me about 45 minutes to do, including set up time.

    No Replacement for Displacement
     
  15. chevyracing

    chevyracing 1/2 ton status

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    I did not read all of the posts for this yet solo, but I do believe those big caddy engines were front sump, so you will have to get a pickup for the oil pump rigged and an oil pan as well. Mudnutt is comming over in a few minutes and we are going to wheelin' at the pits this am, he has a caddy engine he has done all of that to, I will ask him for his parts source. He had the caddy engine in a 53 chevy 5 window. He is going to put it in his Blazer this Summer and take is 355 out and put it in a vega.

    John

    Like to go sloppin' 'round in da mud in a rapid fashion....=)

    <a target="_blank" href=http://coloradok5.com/gallery/albun31?&page=1>BLAZER PICS</a>
     
  16. solowookie

    solowookie 1/2 ton status

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    hey, ask your friend how well that caddy engine fit in the 5 window, and how difficult it was to addapt it in. I may still keep that in picture cuz thats the truck I have.

    I think different caddy engines had the sump in different places, and they are all suppose to be interchangable. I think one has it front, the another in the middle, and others in the rear.

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>link to k5's</a>
     

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