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Caddy Engine

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Donovan, Nov 9, 2001.

  1. Donovan

    Donovan 1/2 ton status

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    I know this probably should be in another place but some of you guys was wonder if the Caddy engine can make the number that a Big Block Chevy can and I can tell you for sure that they can do it. My brother and I built a Caddy 500 for his Nova and we dyno'd it today. It made 649Hp @5500 rpm's and 660ft# @ 4500 rpm's. It made 600ft# @ 3000 rpm's. This thing is a monster. This is why I will be putting another 500 into my Jimmy. I hope to get 375-400hp out of mine. I will keep you guys posted on the Jimmys progress.

    Donovan
    <a target="_blank" href=http://www.rustbucket.rockcrawler.com>www.rustbucket.rockcrawler.com</a>
    Got Leafs??
     
  2. 84_Chevy_K10

    84_Chevy_K10 Banned

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    BBC's just as good.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  3. mpascino

    mpascino 1/2 ton status

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    Those things are 400 HP stock......and I think along the lines of 450 ft lbs of torque. I will look up the actual book numbers tommorrow. Hehe, a caddy 500 motor has always been a dream of mine [​IMG]
    Good luck,
    Mike


    The jeep eater ......jeep it's what's for dinner[​IMG]
     
  4. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    I got a 472 in my '68 Eldorado and it shakes the whole damn car when it turns over, its alot of beef to crank, lol. Once its running though, its rather smooth.

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  5. i just picked up a 472. its a 74-76 according to the head casting numbers. i guess a cam and intake will put you up around 380 hp and 500+ft#s i'd love to hear the details of your build up if you care to share. send me a PM.

    <font color=blue> Experience enables you to recognize a mistake when you make it again.

    </font color=blue>
     
  6. Sparky87k5

    Sparky87k5 1/2 ton status

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    Back about 7 years, I built a 500 using a Cadillac Motorsport Development 513 kit. Overbored .050, 9.1 KB pistons, custom rocker assembly &amp; valve train, forged rods, SS oversize valves, one of the first Edelbrock 500 Cad intakes, max torque cam and DUI ignition. According to CMD, the kit should produce an honest 425 - 440hp and 530 - 550 ft.lbs. torque. All I know is that in my 3/4ton 88 4x4 Suburban, it would pull a 29' travel trailer up mountain passes in high at an easy 65mph. Gross weight, 13,000 ! Passed everything but a gas station. About 6-7mpg towing. What a memory!

    87 K5, 427BBC,D60 &amp; 14BFF, NV4500, NP208, TSM disc's,
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    I imagine anything with a big block would be a joy to ride. I have visions in the future of building a 2wd dually with a 500 caddy for pulling duty.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  8. RedDwarf

    RedDwarf 1/2 ton status

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    "BBC's just as good."

    Yeah, but it's about 200 lbs heavier, and it's taller.

    Also, not many big blocks are making 649HP and 660 ft-lbs.
    That is a pretty special motor. Congrats to you and your brother Donovan, y'all sure know how to build an engine [​IMG]



    Still Poundin' "pavment" after all these years!!! [​IMG]
     
  9. Ddragggon

    Ddragggon 1/2 ton status

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    if not for the fact I currently have a spare BBC earmarked for my K20, I'd have built a caddy 500 out...as mentioned, they weigh less, and thier HP/torue ratings are higher `out of the box' not only that, but you can buy them running, in car for about 300 bucks... they're also somewhat plentiful, at least around here... I had visions of buying an ugly old early 70's caddy with the 500 in it, and building it up, to be deposited into a wheeler.... perhaps I will when I get me a house.

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     
  10. CaptCrunch

    CaptCrunch 1/2 ton status

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    Yup that wonderful stroke is just way better anything out there for torque. I'd imagine you can probably run the cam from hell in that thing ment for performance from 3 grand and up and still spin the tire on that Nova all day LOL. Would make an excellent truck motor... been scoping one out at the local yard for a while now.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  11. COOTER

    COOTER Registered Member

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    YOU GUYS SHOULD LOOK IN TO A BUICK 455.
     
  12. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Any of the BOP&amp;C motors do real well in the torque department. The big displacement ones anyways[​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>
     
  13. DesertDueler

    DesertDueler 1/2 ton status

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    Even my pontiac 350 is putting out over 450 ft/lbs of torque and I am running stock 2 barrel heads and a ram air III cam, performer RPM intake and a holley 750 dp w/ mech secondaries.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  14. Twiz

    Twiz 1/2 ton status

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    You guys have really turned my head around on those off-brand engines (anything other than a sbc/bbc). It would be great to have one of those long-stroke engines in my project Jimmy. Awesome torque, down low, where you need it.

    Still, my grand-mother could tell you how to build a 300 horse small block chev, and it'll fit ANY thing.. And because of that, I'll stick with the tried and true. Don't get me wrong, I completly dig the Caddys/Buicks/Olds/Pontiacs - now-.

    <font color=blue>Twiz</font color=blue>
     
  15. DesertDueler

    DesertDueler 1/2 ton status

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    I am a big pontiac fan. I have extra Pontiac 400 motors laying around, along with the 350 I am getting ready to pull out of the Firebird that I have been thinking about putting in the burb if I can find a way to TBI a pontiac motor.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  16. MUDNUTT

    MUDNUTT 1/2 ton status

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    i've got a caddy 500 under a tarp next to the shed just waiting to get a build up. anyone know how or where to get a rear sump pan for it on the cheap. dont want to spend the 300 cmd wants for theirs

    <font color=blue>DRIVE IT LIKE YOU STOLE IT[​IMG]
    <a target="_blank" href=http://community.webshots.com/album/24975635VazeJOnxiI>SEE MY PHOTOS</a>
     
  17. CaptCrunch

    CaptCrunch 1/2 ton status

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    I was kinda thinkingabout the same project DD a while back, TBI on a 350 ponch. Get a bit more stroke from her. Couldn't find anything. Let me know if you do fine a setup for it.

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  18. Pure Insanity

    Pure Insanity 1/2 ton status

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    Look into the 454 TBI set up. My ex-buddies 89 dually has a 454 w/ TBI. It looks like its an adapter from a Qjet intake to the TBI. I am not positive on this. He had it apart a while back to fix a leaky gasket, and I never thot to ask him about it. I would call and ask, but after over 10 yrs as friends he tried to screw me on a swap (that I didnt want to make to begin w/ but I was being a buddy and helping him out) and when I called him on it he cussed me up one side and down the other for not wanting to make the trade! WTF! He was the bad guy here! I havent spoke to him since.....I dont need that kind of crap!

    AAAHH since I got off the subject I will get back to it....LOL! As I said it looked like just an adapter by GM to stick a TB on an older cast iron intake. I do remember it had water running thru it, to warm the incoming air.

    Might be something to look into.

    If ya can't stop.......Smile as you go under! [​IMG]
     
  19. DesertDueler

    DesertDueler 1/2 ton status

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    I know they have adapters, but the only thing I would need to make of have it nade would be the distributor, since the TBI setup controls timing and thats how it reads where its at, unless I can use a crank trigger for reference for the ecm.

    86Jimmy 4"&35"MTRs,87 burb 4"&35"MT,69Firebird w/525 hp,and 70GTO live in PHX,AZ<a target="_blank" href=http://www.geocities.com/modifierperformance>My vehicles</a>
     
  20. Pure Insanity

    Pure Insanity 1/2 ton status

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    Oh yeah the rest of the ECM system. DUH!

    See this is why I dont like computer controlled stuff in my rig.

    K.I.S.S. principle for me. [​IMG]

    How about aftermarket EFI??

    If ya can't stop.......Smile as you go under! [​IMG]
    PIC of mine from flblazers site<a target="_blank" href=http://www.flblazer.alloffroad.com/photo3.html>
    GO</a>
     

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