socal

iTrader: (1)

So i picked up a 4.8l ls and didn't notice it had the longer crank out the rear, thought it was just the 6.0l that came with 4l80's. So from my research and understanding the converter on the 4l80s is like the old sbc/bbc, w th350,th400 ect... The longer ls cranks require a flat flexplate and maybe a spacer. The same spacer is available to put on a standard ls crank to make a th350/th400 ect.. work w the curved flexplate.

If and what is needed to be able to use the motor and not let it go to wast but not invest much into it?

forcd ind

iTrader: (7)

if it has an extended crank, just a flat flywheel should mate it up to a 350-400 etc with a stock style converter
make sure it doesnt have a spacer though

Bo185

The 4.8l was used in full size vans with the 4l80 and the longer cranks were used with the NV3500 in the full size trucks with the 4.8l.

You can use the a 4l80 or 700r4. The4l60 will work with an old style convter.

socal

iTrader: (1)

sounds good thats what i thought flat flexplate, no spacer and old style trans thanks