Distributor identifying help

[dodge68charger]

Hey guys i wanna install a pertronix setup in my 440 engine. Im not sure what setup to use. I havea few of the distributors with the condensors and thought the pertronix module screws in there but not sure how it works with the distributor i have.. The shaft is also longer compared to the condensor styles i have on the shelf. Thanks

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[62MAX]

That is a small block distributor !

 

[dodge68charger]

Really? It came right out of my big block and has a long shaft.. Is there numbers or a way to tell. Thank you

 

[62MAX]

Vacuum advance position is on wrong side,these are Prestolite dual point but advance location is the same..

 

[dodge68charger]

Would the 400 size engines possibly use that style distributor. I faintly could make out seeing a '400' stamped on the i.d. Pad of the block near the distributor. The engine came out of a truck..I ll check my parts bin later tonight for a spare.. Thanks

 

[62MAX]

400 would be same as 440 only with 1/2" shorter shaft.