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Technical Flathead: Eagle or SCAT crank

Discussion in 'The Hokey Ass Message Board' started by 37dodge, Jul 25, 2020.

  1. What is the consensus on which crank is better for a very High Performance drag motor with 4"-4.25" stroke and why? I have heard the stories of SCAT cranks are hard to balance and Eagles aren't as bad. Has anyone actually had a crank failure and broke one? Is there any differences in the metallurgy of the two? They both are cast steel from what I've read.
     
  2. Beanscoot
    Joined: May 14, 2008
    Posts: 1,860

    Beanscoot
    Member

    From what I've read about the two brands, they're both cast in China, but the Scat pieces are properly finish machined by them in the US.
     
  3. 19Fordy
    Joined: May 17, 2003
    Posts: 7,067

    19Fordy
    Member


  4. 55styleliner
    Joined: May 11, 2015
    Posts: 558

    55styleliner
    Member

    No problems with 4-1/8 stroke SCAT crank and rods after 8000 miles if spirited street driving
     

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