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Truth about block guards

Discussion in 'Engine Building' started by disableddan, Mar 15, 2009.

  1. disableddan

    disableddan Crazy Insane

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    Hello,
    Just wondering what the real deal is with block guards. I remember reading that they can do more harm than good... What makes for a good block guard?
     
  2. Briansol

    Briansol Admins Admin VIP

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    you're better off without it.

    open or sleeved.
     
  3. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    they restrict coolant flow

    your better off investing into sleeves

    maybe pinning the block if your going all out drag but that's another discussion in itself, I haven't done it, but have heard about it.
     
  4. disableddan

    disableddan Crazy Insane

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    So how does one remove the stock sleeve from the block and replace it? I found one site with a write up on darton sleeves and they just machined the orignal block right out and put the sleeves in (sounds expensive :D)
    Is there any way to make a blockguard not mess up your cooling?
    I saw this write up on block pinning on HMT, seems like it could work and isn't very expensive or difficult...
    Thanks!
     
  5. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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  6. Magana559

    Magana559 The Warden

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    well I dont know people, I had my bottom end built by Stewart Racing Engines and they installed a block gaurd. If it was a bad thing why would they put one in?
     
  7. MthaFuknGreen

    MthaFuknGreen Green on the scene.

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    you can get an h22 sleeved for like 600.. so ive heard.
    and is there not supposed to be sound in that video?
     
  8. disableddan

    disableddan Crazy Insane

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    Yeah sucks it had no sound.
    I'm just wondering if making the coolant passage holes in the block guard larger would help with any cooling issues and make the blockguard more dependable?
    Spending that kind of money to sleeve a block is way out of my budget, for now :D
     
  9. MthaFuknGreen

    MthaFuknGreen Green on the scene.

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    it tripped me out cuz that video didnt have sound and the video i played right after it from another thread didnt have sound and earlier this guy was telling me about how he has no sound for videos online on his computer.. i was like wtf? this fool told me about his problem now i have it?
     
  10. disableddan

    disableddan Crazy Insane

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    Well shit man don't give my computer the no sound bug!!!
     
  11. Briansol

    Briansol Admins Admin VIP

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    sleeving needs to be done at a machine shop (odds are, you don't have the right tools... press, etc)

    usually runs about 800-1000 + new pistons/rings.
     
  12. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    sorry about that. forgot to add they took the audio out for some copyright reason
     
  13. RoboRex2005

    RoboRex2005 New Member

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    Block guards arnt really worth it. Its a cheap way to reinforce your block to make sure your sleeve dont float at high rpm, and should be honed out after install.

    Another cheap way to do it is a block fill. bout $80. Coolant jacket gets filled with a type of aluminium, then you can drill out the water passages.
     
  14. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    that has a good change of producing hot spots and potential warping over time.
     
  15. disableddan

    disableddan Crazy Insane

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    So pinning is probably the cheapest reliable method of reinforcing the block...
     
  16. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    probably but overall its usually not worth it and a good idea to check the sleeves are straight afterward. As in boring the sleeves.

    You run into the same issue with metal expanding at different rates if you use a dissimilar metal.

    Unless you are going all out drag and pushing out ridiculously high numbers out of the block I wouldn't waste too much time with it.
     
  17. disableddan

    disableddan Crazy Insane

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    Yeah not really planning anything too insane, maybe some boost at some point but I still gotta find out what's wrong with it :p
    Thanks
     
  18. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    as b said. i would not even bother with it.

    most stock sleeves on hondas hold up really well anyway. its just the pistons and rods that go out under high power.
     
  19. disableddan

    disableddan Crazy Insane

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    Cool, have you guys ever heard of using B18 rods in a D15 and getting the ends machined to fit? Supposedly a junk yard fix for beefier rods...
     
  20. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    D16's maybe, but not d15's.

    you have to machine the wrist pin. but anything further than that I don't know.
     
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