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Thread: 383 build for Scout
          
   
   

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  1. #16
    Earthquake's Avatar
    Earthquake is offline CHR Member Visit my Photo Gallery
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    Nov 2014
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    las vegas
    Car Year, Make, Model: 79 IHC Scout II
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    15

    I would have thought those chambers were bigger then that, they look bigger.
    So what about this set of pistons...
    http://www.summitracing.com/parts/stl-h890cp30

    Let me list what parts I have so far...
    "010" 2 bolt block
    "14102193' heads
    Edelbrock Performer [2101]
    Scat Crank 9-350-3750-5700
    Rods TBD [5.7 bushed pin]
    pistons SP H890CP30's?
    Cam TBD [roller would be a +]
    Mag. Corvette Center bolt valve covers
    Edelbrock 600 cfm carb
    Stainless "block hugger" headers [2" off the collectors into a single 3" out the back]

    I know I need a lot more but I am trying to collect it a little at a time. I also know the heads are going to be a limiting factor but I would really like to use them, I will be looking for some thing better once I get it back on the road.

    Casey

  2. #17
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
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    May 2003
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    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway
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    Quote Originally Posted by Earthquake View Post
    So what about this set of pistons...
    http://www.summitracing.com/parts/stl-h890cp30
    Casey
    Yep, those will work. I'd use something like a 110315-10 Howards retro hydraulic roller cam with 91164N Howards hydraulic roller tappets.
    You can order the cam from Howards with a reduced base circle to clear the 5.7 rods, or you can use a full base circle cam and Scat 25700P rods. You can also use stock Chevy rods and grind some material off at or near the bolt head to clear the cam lobes, but I don't advise grinding on rods.
    http://www.summitracing.com/parts/sca-25700p/overview/
    http://www.summitracing.com/parts/hrs-91164n/overview/
    http://www.summitracing.com/parts/hr...5-10/overview/
    These springs would work.....
    http://www.summitracing.com/parts/hrs-98212/overview/
    Estimate SCR at 9.2:1, DCR at 8.33:1
    Use a steel shim gasket to set the squish between 0.035" and 0.045". Gasket thickness added to piston deck height equals squish.

    .
    Last edited by techinspector1; 11-05-2014 at 07:49 PM.
    PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.

  3. #18
    Earthquake's Avatar
    Earthquake is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 79 IHC Scout II
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    How about these pistons...
    Sealed Power H859CP30 Speed-Pro Hypereutectic Pistons with Coated Skirt - Free Shipping on All Orders @ JEGS
    There a bit cheaper and they list the comp ratio at 9.6 to 1 with 64cc chambers?

    I have a block question, would it be worth it to me to use studs on the mains of the "010" block [2 bolt main] for this build or just bolts? Like I said I will not be spinning this motor very high RPM's, I am buying new main and head bolts regardless so a set of stud for the bottom end is not a big deal, I am using bolts on the heads in case I ever have to change a head gasket or come up with a nice set of heads.
    Thanks for the help guys!

    Casey

  4. #19
    rdobbs is offline CHR Member Visit my Photo Gallery
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    383

    I put studs thru-out on my 383 when I built it. Was about 475 HP and I gave
    it h#ll. Don't think I really needed the studs at this HP, but I went with them
    anyway. You should be ok with just good bolts.

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