Poured engine block
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Poured engine block

  1. #1
    Junior Member
    Join Date
    Mar 2010
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    Default Poured engine block

    I am thinking about buying an engine that has been poured with hard block to below the water pump holes. What adverse effects will it have on a jet drive engine.
    205 Carrera Elite, 454 Berkely jet, stock for now

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  3. #2
    Senior Member
    Join Date
    Feb 2008
    Location
    Avondale,AZ.
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    Default

    It wont affect head or block cooling, but it will adversely affect the oil temprature. The "fire" is out by less than an inch below the deck, no big deal on cooling the cylinders. The rest of the blocks water jacket simply acts as a water manifold to cool the heads. Thats where the heat is. The main issue here is that with the cold lake water at the bottom of the block, the oil gets cooled by it. In short, the oil temps will be through the roof! If you consider the water jacket area "seen" by the splashed-up oil in the crankcase, then figure out the same square inches of oil cooler that you'd need to make up that amount with a cooler, it will be huge. A customer of mine partially filled a 6-71 blown Pontiac stroker motor(about 462") and with an offshore oil cooler about 2 feet long, the temps were a little high (240) while cruising. Anything above 70 mph or so and the oil temp rapidly reached 300 degrees. When he returned to a 40 mph cruise, the cooler could then keep up with it. A street motor cruises with much less load than a boat too, thats why we have several street guys with filled engines and no problems. A street guy can't stay "on it" long enough to hurt it, besides, most street guys don't have oil temp gauges either. Leave this one to the street/strip crowd. TIMINATOR
    MODESTY IS A CRUTCH FOR THE INCOMPETENT!

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