from what i see on ls1tech, the winning combination seems to be the 402. i would buy a 402 longblock with a good set of heads and a custom cam and juice for the track. they make torque up the butt and are very very strong. dont stroke a ls1 motor. its not worth your time, just buy a new short/long block. but for now, get a tune and finish your suspension. thats what im doin
