600 hp capable trans

Engine, Trans & Driveline

  1. furyus

    furyus Well-Known Member

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    So, since I can't get parts to build my engine, I'm going to get my trans built, and sorted this year.
    My question is
    What needs to be done to a 727 so it will hold up behind a 600 hp engine? I know I need a bolt in sprag, and either the red, or blue clutches. Anything else? Thanks.
     
  2. 67charger383

    67charger383 Well-Known Member

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    Shift kit, deeper pan, trans cooler, and a scattershield or blanket.
     
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    • Lefty71

      Lefty71 FBBO Gold Member FBBO Gold Member

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      Aluminum or billet direct (front) clutch retainer. CSI carbon fiber shield may be the best choice.
       
    • F4R/T

      F4R/T Well-Known Member

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      Bolt in sprang is a must , kolene steels, Kevlar bands, alto clutches, different ratio servo arm, billet servos, there is a lot to make one bullet proof! I have that all done to mine and it’s worth it. I recommend calling : A&A, Cope, Kieth at 727 specialist will all point you in the right direction. I’ve used all three and it’s a win with them all! Good luck ! A flite is the best trans and it’s nice to work with..
       
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      • 66Satellite47

        66Satellite47 FBBO Gold Member FBBO Gold Member

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        I bracket raced for 20+ years with 727's that I built myself and 550-600 HP with a stock sprag and a stock front clutch drum, good bands & clutches and mostly Cheetah valve bodies. However an upgrade sprag and a billet drum are sure a good plan. My current motor is about 700 HP in a heavy car. I have a Cope 727 in it. I think the parts Cope uses are great, I have used Cope parts for a few customers 727's. The correct combination of the parts is the key.
         
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