Brief history....

I did a ls6 swap on my 02 camaro (243 heads and cam off of a 04z06).

Question:

Was wondering if i could run a larger cam with the stock 243 heads as they stand with the orange springs that are in there.

I know it is a newbie tech question.... this is why i value LS1Tech.

 

I think the ls6 spring is rated to .550 lift so if the cam your looking at isn't bigger than that you should be fine. If your looking to go bigger change the springs, not that hard and not that expencive.

 

The springs are rated at .570 per everything i have read.... so as long as i stay under .570 lift i should be fine?

Reason why i ask is cuz i did not know if there was a tolerance that i should fall within. Kinda like if a .565 lift would be too close to the .570 and if a better spring would be better in that case or as long as I dont go over .570 i am surely going to be fine with it.

 

No, stock yellow springs are good to .550, check out gmpartsdirect.com

 

12. 03+ LS6 springs(orange): max lift ~.580

Above was pulled from the sticky in this section.

Pulled from https://ls1tech.com/forums/generatio...cam-guide.html

 

Is there a Part Number available for these 03+ LS6 V-springs?

I've tried searching and come up with 12586484.
There is a note mentioning these are okay to 0.570"

- Sid447 -

 

Yeah like i quoted above..... per the thread here on TECH says they are good to .580 Even though the lift on the cam spec is said to be .550

 

Every description i see says .570 like you say.

 

TTT anyone know more?

 

There is more to picking a valve spring than the max lift it is rated for. LS6 springs are only 90 lbs at 1.8 and I think 270 lbs at max lift. Plus everyone thinks that because they are GM springs that they never break. I've see 3 broken yellow springs on 3 different stock Z06 Vettes. Get a set of PAC 1218s or 1518s for any cam upgrade if you want to stay with a beehive spring.

 

So what you are saying is "dummy while you are in there spend the extra $ and do it right by getting springs that are the least likely to fail"

This is the type of answer i was looking for. So it would be stupid of me to even think about keeping the stock ls6 springs no matter what?

 

ls6 springs really limit your cam choices, might as well get some good springs and a cam that will make some power

 

Pac 1218s.....SDL1600VS one of the best beehive for under 600ish lift. $122.95 plenty on hand.

 

Right, get some new springs that are rated higher!