dizzy ID

[Princess Valiant]

I have these dizzys that are supposedly from 400s

I need one to convert a 70 383 to electronic but I am not sure what I am looking at.

How do I know for sure that these are for low deck engines.

The one on the right looks a bit odd but the guy I got them from swears up and down that are both from 400s

any thoughts

 

[66fs]

The 3690431 is the Direct connection Electronic Dizzy for low block engines. Make sure the bushings are tight, the centrifugal springs are accounted for, air gap is within spec, clean it up and you should be good to go. Nice quick curve.

 

[Mrmopartech]

Rani,use this chart to check all the distributors,mrmopartech
Either one can be used,the one on the left is the best of the two,have it re curved and set gap,and bushings checked and your good to go,mrmopartech

 

[RustyRatRod]

I bet yall didn't know a B distributor will bolt in a small block and actually WORK. Seen it did and it ran pretty good. LOL