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Thread: which block for a sbc 434" DART SHP or BOWTIE,

  1. #1
    Senior Member SENIOR BUILDER
    Join Date
    Apr 2006
    Posts
    103

    which block for a sbc 434" DART SHP or BOWTIE,

    bowtie block or dart shp block can either one be bored to 4.155?
    if both can be used which one would you use? thanks for your help
    i would like to sell my donovon block (decked 180,000 ths.) 4.155 bore, crank (3.6250 stroke) and feff johnston aluminum oil pan to build a 434" for next season. Bowler

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    Both blocks can be bored to 4.185. NASCAR uses the Bowtie blk. but spend $1,000.00's of dollars preping them.
    Carl Hink says the SHP and lil M blk are on sale for the next 3 mos and out of the crate the Dart blks are a better choice. About 3 yrs. ago i bought a Dart lil M blk at a very low price because we bought 4 of them. bored it to 4.155, and put a 4" crank in it with Lonati ProMod rods. Didn't have to grind anywhere on the blk. and used a cheapo 7 qt. trap door pan. I did have to use a small base circle cam, Bullit ground me an .880 B/C cam 4.7 swap with a special grind that i ask for. clearance every where no problems.

    JMO

    Zip.

  3. #3
    Senior Member EXPERT BUILDER
    Join Date
    Nov 2003
    Location
    NORTHEAST
    Posts
    290
    Dart says the SHP max bore is 4.165
    WWW.CNCBLOCKSNE.COM
    IS A DIVISION OF
    HINKSON AUTOMOTIVE
    RESEARCH & DEVELOPMENT

    CARL HINKSON 207-892-7215
    EMAIL CHINKSON@JUNO.COM


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