exodus

iTrader: (15)

Will a stocker hold up considering mild converter, and a boosted 6.0, or is there a need to step up?

Breeze

iTrader: (16)

It wouldn't hurt to put a transgo hd-2 shift kit in it.

Wilde Racing

iTrader: (26)

throw a transgo kit in and you will be more than covered..

quicksilverado

iTrader: (8)

Mine is completely stock and held 600 rwhp for 2 years. I now keep it closer to 500 for a daily driver.

exodus

iTrader: (15)

sounds pretty promising. will do the shift kit to be on the safe side.

Stoichiometric

iTrader: (10)

With the shift kit and tuned properly you will have no issues.

exodus

iTrader: (15)

I mean, the next option is one of the finish line 4L80E's

exodus

iTrader: (15)

I dont see myself breaking the 500 mark since this will get driven quite often.

bud8fan

iTrader: (9)

why not im over 550 daily driver and it's great

Y2KLimited

my 4L80 is completely stock about 13-14K miles at the time adn was going past RPM based shift points with 537+......we kinda tried it with no restrictor plate....

of course not a clue what it was making powerwise but the trans wasn't happy.

the built one in the tahoe has taken a the 502 and a 200 shot for towing, street abuse regularly and quite a few big hits of nitrous without complaints with about a 2500 stall.