904: should I switch to 727?

volaredon said

I've burnt out more 904s in stock daily driving than I can shake a stick at. I've never had a "race" car, put mild cams and 4 bbls on a few but that's about it.
I've swapped 727s in place of 904s whenever there was a 727 available. Problems solved.
318, 2bbl, 2.xx gears even.... And I have not had much luck with 904s. ..
I'd be interested in what you guys mean by "built right" 904. .. most of mine have been assembly line stock.

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Not all that useful experience to mention, you said yourself "assembly line stock". I agree in that form they're weak and burn up easily. Fried my original stock one behind a 318 that probably didn't even make 250 HP. If they were truly junk transmissions though I don't think Chrysler would have bothered to continue using the design for decades; the later beefed-up versions (998, 999, 32RH etc.) held up well in lighter-duty trucks and SUVs behind the 318.

I went back and looked up the thread about swapping the valve body in mine, @CudaFactHackJob was the one who guided me through the process and I couldn't be happier with how it turned out. Listen to him, he knows his sh*t. Here's the thread if you're curious: 904 giving up the ghost?