Are these the 640 springs

[kfoss8]

Ok guys i pulled the cover to check the springs the ones ive seen on here have a big red line down thru them saying those are 640 springs mine have Red markings on them but not really a line are these the 640 springs?

 

[stlmikie]

I think so.

 

[V]

The top collar appears to indicate so. But it should be 3 springs each being formed from round wire. There were some springs sets that the inner spring was a flat ( mostly oval ) wound dampener.

If they are .640's from the factory you tha man!

 

[Gas Man]

The tell tale red stripe also helps tell you.

Here's a pic of my S&S 640 springs