Please identify these valve springs

[pmoore4321]

I found these new valve springs and don't know where they came from. I believe they possibly came off a new set of Champion irons, but I'm not sure why I would have changed them. They were in a Comp Cams box, but I don't think that's correct. Anyone have a clue?

 

[forcefed3.8's]

If you have those 26915 beehive springs on your engine with a roller cam, you need to change them now. They are not strong enough.
To answer your question, the springs pictured do not go in that box

 

[pmoore4321]

I believe the beehives are on a set of stock heads I had rebuilt. I'll have to check. I still don't know where those doubles came from.

 

[earlbrown]

the only way to know it to measure the I.D O.D. and put them in a spring tester.

 

[pmoore4321]

Thanks. I found the receipt for the iron heads I bought from Champion. They have the "K-750" upgrade so I know they didn't come from those.