I have been looking at different springs and i'm unsure of what to go with.
-Comp 921 duals with valve seals, titanium retainers, and spring seats
-Crane Cams Dual Valve Spring Kit
-Precision Race Component Spring Kit
or any others.............

New port and polished heads, going with the trex cam 242/248 .608/.612

 

The PRC springs will be fine for that cam and for the are money hard to beat.

 

The PRC springs would be a great match for that cam. Kit comes with titanium retainers, seats, and seals. Give me a shout or shoot me a PM with any questions or concerns and I'll make sure we get you fixed up with everything you need.

Jon
Texas Speed

 

I would imagine a lot of dual spring good to .650 lift would work for you. I am in the process of purchasing everything for my cam setup and i have been recommended Patriot Gold Extreme dual spring kit which is good to .660 lift. Extra lift will help reduce wear and make them last longer...at least thats my understanding.

http://www.ls1speed.com/catagory.cfm...in%20/%20Heads

 

The PRC's and Patriot Extremes are the same spring with different retainers.

 

manufactured by the same company...same springs...either will work just fine in your applaication...You could use the comp or crane dual springs but they will not do a better job and will cost more than the patriot or PRC ..

 

Same springs.

 

Thanks for the help!!