4 speed vs 6 speed
#1
TECH Enthusiast
Thread Starter
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well ive been thinking on swapping my 4 speed tranny to a 6 speed. but first i wanna ask some questions is there good gains by doing the swap? what all do i need to modify to make the 6l80 fit in my 07 nnbs crewcab?
#5
Moderator
iTrader: (16)
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HP/TQ goals?
Turbo?
Nitrous?
Supercharger?
550rwhp and less with the right tune i dont see the 6spd being a bad option. 575+ you better hope it holds up in a brick. I do not abuse my truck, i make a few passes and im done. I make 400rwhp with mine and its fun to drive. Search for my thread it gives you a list of parts and what i used. I recommend you use a harness from a 2007 denali to keep you from changing sensor plugs and stuff like i had to.
Pm if you have any questions that my thread doesnt explain
Turbo?
Nitrous?
Supercharger?
550rwhp and less with the right tune i dont see the 6spd being a bad option. 575+ you better hope it holds up in a brick. I do not abuse my truck, i make a few passes and im done. I make 400rwhp with mine and its fun to drive. Search for my thread it gives you a list of parts and what i used. I recommend you use a harness from a 2007 denali to keep you from changing sensor plugs and stuff like i had to.
Pm if you have any questions that my thread doesnt explain