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bellhousing, aluminum or cast??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by arq, Nov 28, 2001.

  1. arq

    arq 1/2 ton status

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    I'm about to go manual with a hydrolic setup. I have both types of bellhousing. Here is the deal, the aluminum one has built in brakets for the slave cylinder. the cast i would have to fab my own. The alum one came out of a 6.2 deiesel(sp) so I know it must be strong enough. has anyone broken one of these??

    ARQ.

    offroad baja!!!
    72 4x4 CST Blazer
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  2. dyeager535

    dyeager535 1 ton status Premium Member

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    I asked earlier, people have broken adapters (and other things) jumping their trucks, yet had no problems with the bellhousings. (aluminum)



    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?
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I've never had a problem with my aluminum bell housing...and I've done exactly what Dorian mentioned. Jumped the truck and also broke my cast T-case adaptor (different day) but no prob's with the bellhousing.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
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  4. californiak5

    californiak5 1/2 ton status

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    Theres a good aluminum one on your SM465 here at the house. [​IMG]

    Should I hold onto it,.........or not?

    See Ya,
    Keith

    <font color=green>Born to Drive My K5</font color=green>

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  5. dyeager535

    dyeager535 1 ton status Premium Member

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    Oh wait, changed my mind,you should sell me that hydraulic Al bellhousing and use cast iron : )

    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?
     
  6. michaelm

    michaelm 1/2 ton status

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    where did you get a cast iron bellhousing?
     
  7. Mr.Chevy4x4

    Mr.Chevy4x4 1/2 ton status

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    I thought the 6.2 bellhousing had a different bolt pattern where it mounts to the motor than a SBC or BBC? Anyone?

    '85 K5 : Run it til it breaks, then fix it and go again!
     
  8. arq

    arq 1/2 ton status

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    I got the cast iron from a yard. i'm not sure if it's cast, steel, forged but it's not aluminum, but then again it may be aluminum there's a ton of crude on it. sorry if i missled you.

    as for the bolt pattern, let me go check.

    ARQ.

    offroad baja!!!
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  9. michaelm

    michaelm 1/2 ton status

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    i dont think so
     
  10. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Chevy is Chevy when it comes to bellhousing bolt pattern for a V8. Diesel and gas are the same.

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

    BlueBlazer 1/2 ton status

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    The diesel bellhousing is the same as a SBC or BBC

    82 K5, 6.2L Diesel, sm465, np205, 14 bolt welded, 8 lug 10 bolt lock right, 410 gears, 35" Mud Kings
    SPEAK SOFTLY AND DRIVE A BIG TRUCK
     
  12. arq

    arq 1/2 ton status

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    don't scare me like that, i just compared them. same bolt pattern on both ends. the only think that i noticed diff was the mounting of the starter. the steel/cast/whatever it's made of has the starter mounted on it. where as the alum, starter bolts to the engine.

    ARQ.

    offroad baja!!!
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  13. Mr.Chevy4x4

    Mr.Chevy4x4 1/2 ton status

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    OOps! Sorry! [​IMG]

    Shows what I know about the diesels.



    '85 K5 : Run it til it breaks, then fix it and go again!
     
  14. dyeager535

    dyeager535 1 ton status Premium Member

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    The older Chev's had cast iron bellhousings, but thats even pre '68 or something, at least in most applications. Sure seems odd that the starter mounts to the bellhousing, that sounds like an old design as well.

    Compare the hole right down the center. The SM465 uses a comparatively huge input shaft bearing compared to (all?) other Chev trannies, and the other tranny bellhousings won't fit, even though the bolt patterns may be the same.

    Dorian


    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?
     
  15. marv_springer

    marv_springer 1/2 ton status

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    I think that cast one is an old 292 6 cyl bellhousing. Used to have one like that on my 67. I swapped in a V8, and the V8 starter mounted on the block, but the bellhousing had tapped holes for the 6 cyl starter to mount to.

    Use the alum. one.

    Marv
     

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