AJay

iTrader: (1)

Hi everybody!

It's been some time since I posted on this forum. Thought I would run this question past the experts.....

My cam specs are 214/220/118 .559 .564.

I have AFR heads with the AFR standard factory installed dual valve springs.

I've put 25000 miles on the car since I did the H/C upgrade. The car isn't tracked or raced. I never go above 2K until the engine oil temp reaches 120F. The engine rarely sees 6K. I don't want to go through the hassle of changing the valve springs but obviously the thought of a broken valve spring and the consequences of such are pretty scary.

Is it time to change the springs or am I OK to run?

Thoughts / opinions please.......

Zitty'sZ

iTrader: (29)

I would think they are ok for that small of cam and your driving style, but the right way to know for sure is to have the spring pressures tested to see if they are still in spec .

AJay

iTrader: (1)

Can this be done with the springs installed on the heads or must they be removed first?

Zitty'sZ

iTrader: (29)

I'm pretty sure they have to remove them to be checked . If I remember correctly they are placed in a tool that compresses them to the correct installed hight and then it measures the spring pressure . If they are off a little bit in pressure , they shim them to bring them back into spec . If they are way out of spec I would just buy new ones .

ShortChevy

iTrader: (21)

If your going to pull them off to test them I would just replace them sense there already out. Then there is no question.

JPH

iTrader: (2)

Pull a couple off and check them, 1 intake and 1 exhaust spring. See if the pressures are still with in the tolerable range of where they need to be. Most local machine shops will do this FREE of charge for you. But by looking at your cam profile, I would say your springs should be just fine. good luck man.

Joe

vettenuts

iTrader: (4)

Joe,

Do you know if any of the "on engine" tools work with the LS1? This is the tool that rotates the rocker.

McCs WS6

iTrader: (2)

i just bought an on engine spring tool from thunder.. i am gonna install my new springs this week.. i can let u know how it works

bluehawk2

iTrader: (74)

I would think they are ok.........I just replaced my patriot golds at 35 k miles. My cam is a 600 lift cam on a XER lobe. Your cam is not nearly as hard on the springs and you don't run the car hard.

bluehawk2

iTrader: (74)

If you do decide to to change them, the crane spring tool is really nice. If you have a decent air compressor you can get the attachment to pump up the cylinders.

McCs WS6

iTrader: (2)

how big of an air compressor to pump up the cylinders??

DONAIMIAN

iTrader: (18)

Not big at all. One of the small pancake compressors should be able to do it.

PREDATOR-Z

You should get them pressure tested
You should test all of them

Anybody telling you they are Ok must be a fortune teller. Ask them what the winning lotery numbers are for next week.