PSM

iTrader: (2)

I have a gt2-3 cam going in my truck with a magnacharged lq4. The boost is going to be stock lvls so 5-6psi. I am going to leave that as it is and this is my DD with 20k miles a year. That said I am trying to pick springs that will last me a long time. Here are my choices

yellow ls6 - oem designed for life, but gt2-3 cam seems to max out springs and I have boost

Comp 918 - can take the lift of the gt2-3 and have more spring pressure. I am unsure on how long they will last?

PRC Duals kit which includes ti retainers - way overkill for the gt2-3, but would this give me long life?

Thoughts?

JPH

iTrader: (2)

Boosted application I would recommend DUALS, but I have seen #918 beehives "live" with NO issues.

PSM

iTrader: (2)

Am I correct in assuming 918's need replacing every 40k miles or so

If I get PRC duals with titanium retainers etc how long will they last?

JPH

iTrader: (2)

Depends on cam profile and usuage?

PSM

iTrader: (2)

This is my 20k/yr DD running a max of 6psi of boost. The cam is a lingenfelter gt2-3. What I want is the longest lasting spring I can get. I will bring the truck to the track... but i'm not going to make it weekly event

PREDATOR-Z

Comp cam 921s

PSM

iTrader: (2)

aren't those dual springs?

PREDATOR-Z

Yes they are, less aggressive than Patriots or PRC. Good for that cam and boost.

Jason 98 TA

iTrader: (4)

I've personally checked PRC springs after 50k miles & they were still useable. While I like to see them checked ever 25k miles, I feel like the PRC spring will provide you with a long trouble free life.

All PRC spring kits uses components made in the U.S. Each retainer is carefully inspected to make sure install heights stay correct to help provide proper pressures on every valve.

PREDATOR-Z

I vouch for that, I have PRCs Platinum, I've used with 4 different cams for street and 2 drag seasons and 2 motors. Still within specs and running strong in my 12:1 370cid

Trick is the OP doesn't really need so much spring pressures though, that is why I said comp 921s.