hey guys I know this not might be the right place to post this but I need some help asap. I just recently purchased my 4l80e for 2000 z/28 and I wanted to find out what would be the best shift kit to put in it, I have been thinking about getting hd2 shift kit from trans go. And around how much horsepower will the transmission with just the shift kit and a 3600 stall(yank pro series).

 

That is a loaded question. If the trans is in great shape, the shift kit is installed correctly, the tune is spot on, and you run enough cooler the trans will hold a **** ton of power. If it is a high mileage junk yard unit, you are tossing a many sided coin.

 

What would be good cooler for the 4l80e

 

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