Yes. They should bolt right in.
Yes
No, 2 differen't body styles.
Yes I have a 64 and repairing the quarters with 65 skins. They are identical.
A standard Chevelle frame will not fit an El Camino as it was based on the station wagon frame
'64-'67 Station wagon or El camino frame.
yearone.com and you can use the fusebox from the regular 64 chevelle, it's the same.
about 250 horse.
64-65-66-67 chevelle.
That all depends on the shape it's in, your best bet is to take it to an appraiser.
you need a chiltons repair manual from the library for 64 chevelles
65 66 and 67 will interchange.
Yes.