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    Thread: 605 vs 670 box

    1. #1
      Join Date
      Apr 2004
      Location
      Cedar Rapids, IA
      Posts
      999

      605 vs 670 box

      I have a 605 box that was give the fast ratio gear set a heavy T-bar by Lee. I like it and it has a feel.

      I have another project that I will be starting soon. The 670 box gets a lot of good reviews, but it's usually from someone swaping out their stock steering box. My question is, is can I really justify the cost of a 670 box vs getting my stock box rebuilt with the fast ratio gears? I know the 670 has much tighter tolerances would I really be able to tell a difference between the two? Any other Pro's as why to go with the 670?

      Some times I'm fast sometimes I'm half-fast


    2. #2
      Join Date
      Jun 2006
      Location
      Katy,TX
      Posts
      1,678
      I'd call Lee. I think they even pioneered the 670 performance box.
      1978 Black Trans Am 455 Edelbrock heads [email protected] through mufflers on pump gas
      1981 Trans Am 400 stock type motor
      79 Camaro getting a 500" 695 hp IA2 Pontiac motor
      1965 GTO project car
      470ci/Chevy dual quad 409 604 HP 64 Impala SS project
      2004 Pulse Red GTO


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