904 Conversion to 727 in early a-body?

Thanks for the information.
I'm running short on time and had to do something.
I've got a local second generation Mopar guru rebuilding my early 904.
He knows I have both early 904 and 727 and said that if he thought the 904 build would not hold up, he would have directed me to the 727.
I now know I have options with going to a later 904. (thanks 65s)
I knew he (Imperial) was working on something, I didn't know he had it done.
Thanks for all the help guys.
Mark