CHANGING MY 727 FOR AN A518

[LOBOROJO]

start my proyect duster 76, is dificult make alone but yes im can. well, i decidet change my old 727 for a a518 and in reality not need to cut all the floor it, only one it o two punch whit hammer of thor
change the support of transsmition, a samall scar and ready. mmmmm well in my dreams only. i have this problem and need help guys ...

 

[Dubob]

727 has one bolt hole and lug offset on both converter and flex plate. I usually index it before installing and paint a stripe on flex plate and converter so I know where it has to be. Usually don’t know til you get to last bolt that it’s off. If that’s what you’re asking about.

 

[LOBOROJO]

IT IS DIFFERENT THE FLEX PLATE 727 TO A518?

 

[67Dart273]

The difference is serious, depending on your engine balance

On the older 904/727's the weight for the "off balance" engines such as a 360 are on the converter. Those cars have one "odd" hole on the flex plate

A 518 converter is always neutral balanced. If you are running it against a 360, you need an aftermarket "weighted" flex plate to put the combo in balance. A500/ A518 converters / flex plates are symettrical bolt holes, as there is no balance/ index problem. On those, the weighting is on the flex plate. HOWEVER a magnum flex plate IS WEIGHTED DIFFERENTLY than is a 360 vs 5.9

To simplify this, we need to know "what engine" you are running?

 

[LOBOROJO]

Thanks 67Dart273
my engine is a 360-5.9, 4.00 v8