Re: 71 BW Auto Tranmissions

[farna@xxxxxxx]

The 727 has a very heavy rotating assembly. That's one thing that makes it strong, but it eats up a LOT of power to turn when compared to others. That's why there are so many beef up parts for the 9xx series -- racers prefer them. The iron BW has stronger internals, but not a lot more rotating mass than the lighter aluminum versions (some, but only a pound or two). The only real "problem" with the BW is that no one makes a shift kit for it. An old time shop might have a template to make one, and someone here posted something about a company that may have a towing shift improver kit still available. Use the search feature for BW and/or Borg Warner (also Borg-Warner and B-W), or maybe just "shift kit". Should find the post. You need to do it soon though, the archive will "roll over" soon and start over! 

On January 2, 2005 Joe Wyatt wrote:

> Thanks for the info been running the 904, 998s, and 727,  In my 71, and 72s.
> The 71 had a BW in it, but was always having problems with it Alum/304.
> Changed the eng to a 1974-360 and used a 904 in it.  Got a 71 360 eng the
> other day with the steel BW and was thinking about trying to use it in the
> 71 after rebuilding it.  I have a 727 that will fit it also.
> 


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