Valve spring identification

[87action]

I had my ported champion irons completely reworked
I purchased them a while back from a member here they were in very poor condition I found out

Now they have brand new ferrea valves keepers retainers Springs Viton valve seals valve job etc

How do I figure out what roller valve springs were installed they look and measure like pac1201?

 

[87action]

Forgot to mention
Would like to go to more aggressive camshaft!

 

[earlbrown]

Only way to know is to put them on a spring tester and see what the spring rate and installed poundage is.

 

[Boost231]

As earl said, you need to pull them. Also check install height to see what seat pressure is

Sent from my SM-G935T using Tapatalk

 

[87action]

Got it
Thanks