503 Stage1

Discussion in 'Tri Shield Performance' started by ap1672, Nov 16, 2014.

  1. ap1672

    ap1672 Silver Level contributor

    papa roger likes this.
  2. Jim Weise

    Jim Weise 1000+HP

    TA Block

    4.5x3.95 My 470 rotating assembly with bigger dia pistons, in a TA block, is what it is.
    They have a limited number of TA blocks with Buick crank/cam sizing.

    The 503 if for folks who just have to have the look of the Alum block, but don't need the high buck crank and rods that make a 555 shortblock cost $15K.

    JW
     
  3. ap1672

    ap1672 Silver Level contributor

    What would the approximate maximum safe HP and RPM limits for a stock crank in a new stout block?
     
  4. Jim Weise

    Jim Weise 1000+HP

    With a good balance job, I would have no problem with 900+ HP and 6500-7000 rpm intermittently.

    Light components of course would be the best here.

    The crank was never the issue.
     

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