Hey all I just got a 400 that was rebuilt and my 350 is original still with 200+ mls, so my question is how easy is it to do a swap is there a length difference? thnx in advance for any and all help.....oh yeah my car is a 70' lark 2dr o No:
I believe the motor mounts and fan shroud. Shouldn't be anything else....For more info, try doing a search on the board.. Good luck!!!
Not too bad. Might be a different mount. The 400 trans is a little longer, and uses a different front yoke. The driveshaft will have to be shortened. The crossmember has to come back a little. You have to hook up an electric kickdown (THM 350 uses a cable) Vacuum modulator comes out the side of the trans on the 400 (out the back on the 350), so the vacuum line needs to be modified. That's about it I think, I'm sure I forgot something. Is your 400 a short shaft? (4" extension housing)
RE: Hey I have the short tail shaft is this good for my car or is this one for a truck the guy who had the rebuild done had three trucks and a Rivi...He passed so I have no way of knowing what it was to be used in his daughter gave it to me for cleaning out the garage....Oh yeah how much do I need to have cut off of the drive shaft? I was told by a friend(chevy guy) that I couldn't use my same u-joints I have to get a custom one that goes from a 4spd to a 350 drive line is this true?
