I bought these when I bought my boost TU2 cam and 408 stroker kit. i have sold my storker kit and TU2 cam. I was going to use these with my new motor but the heads I'm buying already have the PRC .675 springs installed so I don't need these anymore. So Im selling these. I paid $350.00 for this spring kit. these have never been installed. I know you never get your money back you paid for them new. But I'm willing to let these go for $300.00 shipped + pp fees. for fastest response you can text me. My cell is 406-698-9136 thanks Shawn

 

Sent pm

 

Sold!!!