wayne70
06-04-2018, 01:15 PM
Is a turbo 400 trans able to adapt to a lt4? My car has a th 400 and gear vendors in it now and thinkimg of going to lt4.
WOLF1732
06-04-2018, 02:37 PM
You will be missing some bolt holes but will have plenty to work and the dowel pins are the same. you are going to need a new flex plate with the old style converter bolt pattern. and you will need to come up with a hand made dust shield cause the turbo 400 will not bolt up to the LT4 oil pan. minor pain but will work.
Why not use the 8L90-E ??? direct fit 8 speed and engine braking.
wayne70
06-05-2018, 01:55 PM
Thanks for the info. Now that i retired i have to watch my penny's and the th400 and gv are in the car now.