valve spring question

[rastaintegra]

I want to know what is the differents between ls dual springs, and that of a vtech.

[jdm eg99]

http://www.google.com/ copy paste

[Bacon]

When did the LS come with dual valve springs? :thinking:

[jdm eg99]

When did the LS come with dual valve springs? :thinking:

right lol !