904: should I switch to 727?

Projectile Dart said
The 727 IS a stronger transmission but your car is light and you don't plan on towing anything around with it so you will be fine. I always thought I needed the 727 but now that I have the car I realize I really don't abuse it as much as I thought I would and a guy I met at a show locally has a 904 behind a built 360 (I believe its stroked) and that car is FAST in my opinion. I asked him if he was worried about breaking the 904 and all he said was that he built the motor expecting the 904 to blow up and when it did he would send it out to get fully built as well... and that after 10 years of driving the crap out of the car, he still hasn't been able to kill the trans...

Thanks for that! Yeah, my original 75, back in the early '80s, had a 360 and 727, with the standard rear differential. I did an overhaul once, put it back together, and promptly turned the stock diff into a shiny, shattered paper weight. Had a local shop owner tell me that the 727 was the ONLY way to go, or I would have shredded a 904 too. Maybe it was a status thing? Who knows. But, if I can figure out what I can do to beef up the 904 just a tad, I'm sure that I won't abuse it as much as my much younger self probably did. :)