AMC401 to tf727 in place of th400....

AMC 401 that had a TH400. Guy wants to put a GW AMC TF727 behind the 401.

when i did mine 10 years ago, i started witha 77 chief that had a TH400/QT, i removed the TH400/QT, i had a 86 GW TF727 with a 208 on the back of it, i bought a 73 javelin 727/401 flex plate from napa and a new torque converter ground the brass th400 centering bushing out of the end of the crank. bolted it together, hooked a 80-89 GW the kick down cable up and drove the crap out of it.

but he seems to think that he needs a spacer between the crank and the flex plate. did i miss or forget something.

will someone detail this conversion out and i'll email teh guy the link so he can get his conversion done right

MC dont you sell the flex plate now?


I dont like giving out bad info so i want to make sure im not screwing this up

Yes we have lots of flexplates. The spacer he refers to may be the one that came in the early 67-72 model th400's with the nailhead pattern. No spacer is needed for a AMC 727 though.

so just to be sure if he has a
1980-89 TF727 from an amc power FSJ
a 1973 Javelin TF727 to 401 Flexplate from bulltear
a new generic TF727 torque converter

He can reuse a 1973-1986 AMC V-8 starter
He can reuse his engine plate
he can re-use his crank bolts

he'll need a cross-member

he'll need to get the kick down cable from a 80-89 GW with 360 /TF727


He should be ready to go.


Thank matt. hey how those heads coming..... :!:

Heads!!! HEADS!! :shock:

Tell him to get a LOKAR kickdown...much better to setup than the factory unit.