02camarom6

I would like to know if anyone has had problems with the psi 1511 valve springs and about how long i should expect them to last? I bought the car and it had already had a cam swap done with a cam motion 224/232 .581/.595 114 lsa and just wondered how much longer they can be ran before I buy a set of PRC .650 from Teaxs Speed!

vettenuts

iTrader: (4)

Why would you ever remove the PSI 1511 MLs and replace them with duals? The PSI springs are one of the best springs available for the LS1 motor and if you are not having control issues just buy another set when replacement time rolls around.

spicebird98

iTrader: (10)

if im not mistaken PSI springs have a zero percent failure rate. I would say they are the best spring you can get for our motors

PREDATOR-Z

I agree with Vettenuts, going to prc duals would be a downgrade.

02camarom6

Alright thanks. Also about how long should I run these before replacing, they have about 4500 miles on them now?

poltergeist 02

iTrader: (65)

i would have one checked at 10k. if it tests good then reinstall it and run them for another 5-10k

sweet99ss

iTrader: (41)

Seriously check it at 10k? We are pulling springs every 10k now? I'd say run them 20k and check and if they are good run them 10-15k more and replace.

sweet99ss

iTrader: (41)

Btw not trying to thread jack, but where is the cheapest place to buy the psi 1511 valve springs?

poltergeist 02

iTrader: (65)

call psi or cv products and ask them for an answer. they would know best.