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Gear drive timing gears, Anyone?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by reddog64, Oct 13, 2001.

  1. reddog64

    reddog64 1/2 ton status

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    Anyone put in a gear drive timing setup... do you have to modify the block any... it seems to me it wouldnt fit...
    It's a 350 small block..
     
  2. Waxer

    Waxer 1/2 ton status Author

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    It will fit just fine. You will get a gear whine coming from the engine which you'll hear from the cab. Sounds kind of cool. Only thing is in Cali they are not street legal.


    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  3. michaelm

    michaelm 1/2 ton status

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    depends which one and which style
    dual idler style usually dont require significant work to install
    a single idler style usually has you drill and tap
    i would love to have one
    how would the emmision tester know how your cam is driven?
     
  4. Waxer

    Waxer 1/2 ton status Author

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    Well if he isn't an idiot, he could hear the whine from the gears and know whats in there. Otherwise he has no way to know between double roller timing chain vs stock.

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  5. michaelm

    michaelm 1/2 ton status

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    have yet to meet a minimum wage gov worker that wasnt an idiot
     
  6. Waxer

    Waxer 1/2 ton status Author

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    Ok I checked your profile and you're from Canada, so that explains it.

    #1: Emmisions testers are not government workers.

    #2: They dont make minimum wage either.

    With that, lemme just add this. There is a lot of training involved when getting your smog technician license. I know cause I took a few classes at the local college.

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  7. reddog64

    reddog64 1/2 ton status

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    Hey learn to read a little slower Waxer... I'm not from canada... I have a technical degree in both computers and business... and am working on my electricians program right now so blow it out your ass...

    You just proved my point... there are a lot of stupid people in cali...
     
  8. Waxer

    Waxer 1/2 ton status Author

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    Ummm Reddog64, it looks like you are the one who needs to read slower. Look at my post again and you will see its in reply to 77chev. NOT you!!!

    Ok, and secondly your technical degree is irrelevant as they have nothing to do with the topic.

    and yes, I forgive you for being so rude with your mistake.

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Hey Waxer,

    Just curious why a gear drive would not be 'street legal' emmissions wise in Cali?

    <blockquote><font class="small">In reply to:</font><hr>

    you're from Canada, so that explains it

    <hr></blockquote>
    Heeeeeyyyy...I resemble that remark![​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>
     
  10. Waxer

    Waxer 1/2 ton status Author

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    I have no clue myself, I just know when I bought mine it said all over the package "Not legal for use in California on any street legal vehicle" or something close to those words.
    It doesnt make sense cause timing gears or double roller would improve the timing accuracy. Fricken California is what I say.

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  11. reddog64

    reddog64 1/2 ton status

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    Hey Waxer...

    My bad...

    Sorry man
     
  12. Waxer

    Waxer 1/2 ton status Author

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    no problem at all. :)

    Crawlin the rocks with my K5
    <a target="_blank" href=http://www.rockreadyk5.com>http://www.rockreadyk5.com</a>
     
  13. Triaged

    Triaged 1/2 ton status

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    IMO it is a waste of time, money, and HP to run timming gears insted of a chain unless you are spinning the motor over 7000rpm (I hate the sound they make anyway).
    If you really want to do a gear drive setup the only way I would ever do it is to use a 2 gear setup (2 gears total) and a reverse rotation camshaft

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
    <a target="_blank" href=http://community.webshots.com/user/triaged>See it Here </a>
     
  14. twenty_below0

    twenty_below0 1/2 ton status

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    I personally like the gear drive (very accurate) and they have that certain whine that say's "BALLS" plus they last forever, you can build a good motor and use it till it's gone then build another ,so on and so on, where with a x2 roller chain they are good for 1 motor only. Also some gear drives aren't very noisy others are like the Peat Jackson, very noisy but sounds MEAN!!!
     
  15. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I've heard they rob a bit of HP though...for the price of a quality double roller I wouldn't worry about only getting one motor out of a set. I like the gear whine too...but I've never had to put up with it for extended periods of time. It might get on my nerves after a while.

    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>
     
  16. hammer

    hammer 1/2 ton status

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    I have a pete jackson in LT1 350 crate motor in my camaro, But I won't put one in my bazer scares the crap out of the deer. I need it to go hunting with
     
  17. POWERMAD

    POWERMAD 1/2 ton status

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    I have the Edelbrock gear drive in the 73.
    I have no problems with it. The noise aint to bad and I have driven 16+ hrs and it is fine.
    As far as robbing HP I don't see how it would take any more than a chain driven one.


    <font color=green> Too bad ignorance isn't painful </font color=green>
     
  18. bablazer73

    bablazer73 1/2 ton status

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    i think they are a waste in a low hp engine. the noise comes from gear clash. noise... is vibration...vibration is engine damage. not many "racers" use them. if you want something trick.... external timing belts. if you are looking for performance, save your money for something better. I would just use a "good" t-chain. cloyes or something. but i do think the noise is cool!!

    your right. I don't understand the jeep thing!
     
  19. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    A friend of mine uses one in his drag car.When he tares down the motor at the end of the season he always has excessive wear on the top of his cam bearings toward the front of the motor like the gears are trying to push apart .He says that didnt happen when he used chains.I had one for the 351 that was in my mustang but decided not to put it in after seeing that.

    A balanced diet is a beer in both hands.<a target="_blank" href=http://community.webshots.com/user/beaterwhang>community.webshots.com/user/beaterwhang</a>
     
  20. MUDNUTT

    MUDNUTT 1/2 ton status

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    chevyracing has had one in his 383 smallblock for awhile{i dont think he even really knows for sure. every time he tells me about it its been in there longer and longer}. he should be able to give you some info on how they run over the long haul


    <font color=blue>DRIVE IT LIKE YOU STOLE IT[​IMG]
    <font color=red>PROUD TO BE AMERICAN[​IMG]
     

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