Need advice on trany parts

[BBKNARF]

Right now I'm using a stock 727, except for the valve body from SMR, and converter, 9 1/2" Dynamic, installing this coming weekend.
It's bolted on a 451 big block pushing just over 500 hp, I drive it on the street but take it to the track a couple of times of the season,
so far the transmission is holding together quite well, it shifts hard  
In the near feature I'm building a 500 cu.in. pushing approx. 600-650 hp.
I need to know what parts are needed to build a street/strip transmission,  nothing to extreme.
Thank you.

P.S. Brand names and part # would help, thanks

Frank

[firefighter3931]

A good billet steel front drum is important because if the rear over-running clutch (sprag) ever lets go you will avoid a nasty explosion. 

I went with a 4.2 kickdown lever, heavy duty band strut and billet aluminum servos. The front planetary set has also been upgraded to steel from the (stock) aluminum. 



Ron