i found a ls motor and trans for a good price but what i need to know is will i have to rewire anything and can i use my stock ecu with this motor... or will i need to get a ecu also.. what all is consisted of this swap??? i know the motor and trans and axles but what about the wiring thats main issue.. any help would be helpfull

 

look through the archived content using the search button ...this has been covered many times....

and YES you will have to get a new ecu!

 

what ecu shoudl i get because im planning on swapping the head with a b16 asap but i have to go ahead and put this motor in as of know if i get it.. because i have my swap sold when i get a motor and i cant have too much down time on my car

 

Search for LSVTEC. This has been beaten absolutely to death.