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filled block

  1. #1
    Senior Member steele211's Avatar
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    Default filled block

    Pros and cons of a filled block? Are they capable of 3 hot laps in a blown alky motor? Just a curiosity question

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    Senior Member rampgirlll's Avatar
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    Quote Originally Posted by steele211 View Post
    Pros and cons of a filled block? Are they capable of 3 hot laps in a blown alky motor? Just a curiosity question
    How long is a lap? 1000 ft or 1320 ft should be fine....Would still check to see how hot its running after each one before I blasted off for another.
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    Default fillied block

    There are people running them longer than that but they are watering the heads, some of the solid blocks have the weep holes just to water the heads nothing else.

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    gn7
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    Full fill to the deck, you better listen to rampgirlll.
    Partial fill to the top of the freeze plugs, you can run the hell out it.



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    Senior Member steele211's Avatar
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    Never even thought about water to the heads only. I can see the advantage to that and see how it would help

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    Senior Member rampgirlll's Avatar
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    We do not have water in ours at all. And we prolly wouldn't run 3 consecutive laps, two back to back yes. But only if its the semi's and the final round.
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    SDBA #819 vdrivegrimes's Avatar
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    How about oil temp?

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    Default filled blocks

    We always filled ours to the bottom of the water pump ports never had a heat problem but this was a drag boat not a street car or anything be we would go test and run it 10 to15 minutes at a time with no problem. If its fill all the way to the deck i dont this you can water the heads can you bob.

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    Not even getting out of the water hot laps? Or quick pit stop, pump in a little water and fuel and go again?
    I can tell you any BA piece will get hot after 2 laps if driving to rope/ back. Hence the pump water through it.
    The hard block will hold a bunch of heat. No way to cool that.
    Oil temp... if you are running VR1, it don't even matter. ROFL
    Wags

    So, define "hot laps".

  12. #10
    Senior Member wagspe208's Avatar
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    Pros: The cylinders stay round and nice. Quick few passes with the CK10 and you are ready to go.
    Cons: Heavy, after a few years the hard block will start to separate from the cyls. Mine did anyway. Usully took 4 years and hundreds of passes, though.
    Wags

    I ran a filled 454 block (well, 3) from 99 till 2007. First one freeze cracked. I cut my arm half off and didn't drain it. Second, ran 4+ years and hard block separated from cyls, split a cylinder. Third, well, I KO'ed that piece. NOT a block issue.
    Last edited by wagspe208; 07-10-2012 at 12:37 PM.

  13. #11
    gn7
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    Quote Originally Posted by vdrivegrimes View Post
    How about oil temp?
    On a partial fill, top of the freeze plug deal, the oil temp is affected more than the block temp. On a full fill, the block and heads will over heat before the oil will. With water suplied to the heads externally, I think the block temp will still be the limiting factor.
    Quote Originally Posted by matt wheeler View Post
    We always filled ours to the bottom of the water pump ports never had a heat problem but this was a drag boat not a street car or anything be we would go test and run it 10 to15 minutes at a time with no problem. If its fill all the way to the deck i dont this you can water the heads can you bob.
    Once you fill it above the water pump inlet you have to supply the heads externally. You can get water to the heads right up till the water inlet is blocked.



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  14. #12
    gn7
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    Quote Originally Posted by wagspe208 View Post
    Not even getting out of the water hot laps? Or quick pit stop, pump in a little water and fuel and go again?
    I can tell you any BA piece will get hot after 2 laps if driving to rope/ back. Hence the pump water through it.
    The hard block will hold a bunch of heat. No way to cool that.
    Oil temp... if you are running VR1, it don't even matter. ROFL
    Wags

    So, define "hot laps".
    I take it your talking about a partial fill if your pumping water thru it. How much of a fill you talking about? Bottom of the water pump inlet?

    Yeah, the VR1 is the whole secret to it.



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    Default filled block

    Man if your wanting a ski boat i think you got the wrong deal, but if you are only building a mild blown alcohol motor say 15psi like you said before i dont think you would need to fill the block water the damn thing, now i would guess it will take awhile to get it to warm up like that.

  16. #14
    SDBA #819 vdrivegrimes's Avatar
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    Vr1 with fleece filters?

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