JD_Z28

iTrader: (19)

I'm looking for a good set of valve springs for my build. The car is a twin turbo 402. Would you guys recommend the PAC 1521 springs or is there a better choice? I need a good spring with good seat pressure to help prevent valve float. I also want a spring that's going to last a long time.

black98ws6ta

iTrader: (77)

What size cam? No reason to not do Patriot duals unless your camshaft/combo needs more spring.

Nitroused383

iTrader: (10)

They are great valvesprings for the proper application. Kevin (WKMCD) uses these on his current setup, they were also on his previous stroker with a .660" cam. They specced out perfect so Shawn from VA Speed reused them. One of the best springs for their size.

https://ls1tech.com/forums/generatio...b-c-d-e-f.html

https://ls1tech.com/forums/12887905-post769.html

JD_Z28

iTrader: (19)

My cam is only a 590 lift. I just want a spring thats going to last and have a high seat pressure.