727 transmission build

[73chargers4404]

im looking to have my 727 transmission rebuilt ,and was wondering what extra added stuff would make it hold up better im looking at buying a heat treated sprag and race ,and maybe a shift kit i  dont know
nothing about transmissions ,but im wanting to get about 600 horse out of my 440 and want somthing to hold up to my abuse any suggestions would be nice is there anything thats a weakness on these transmission .thanks

[RD]

if you want 600 hp, then go to www.copesracingtransmission.com or call 219-374-0100

better doing that then going to some local tranny shop who doesnt know how to build a race 727

[deputycrawford]

Listen to RD. If you want options then also check with A and A transmisions. They are at aandatrans.com. you will get the idea that a bullet proof trans at that power level might cost you over $3000. You will only spend the money once.