Just because 1 spring breaks doesn't mean they're unreliable....

Did you let the engine warm up before you drove it hard? I don't even go past 25% throttle until the engine is at op temperature.

 

Just because 1 spring breaks doesn't mean they're unreliable....

Did you let the engine warm up before you drove it hard? I don't even go past 25% throttle until the engine is at op temperature.

 

Dont be sorry man ha, Not your fault. And ya i stopped the truck right after i felt it fall on its face.

Just found out that i bent an exhaust valve..


Truck was fully warmed, I always make sure its warm before I give it to much pedal.

 

UPDATE: i got lucky, I only slightly bent an exhaust valve.. so he is goin to pull the head and see if he can replace the valve, If not then a new to me stock 5.3 head will be goin on..

 

The fact that it broke so quickly on such a mild cam, I think something else must have contributed to it breaking in your case. Either that or it was a factory defect in the spring. I'm running those same springs on my 228R and it is .588 lift and I have rev'd it to 6700 many times.

 

I know man, Both me and my tuner are in shock because my cam is no where big enough to break those springs.. We were just thinking a bad batch/spring.
It broke in 2 places also.

So i am thinking of running duals now..

 

Glad to here it wasn't serious homo... I thought the pacs were doubles???

 

I think it's a pretty proven fact that dual springs do not provide more protection in a spring breakage scenerio. The small spring in the middle is nowhere strong enough to keep the valve up with the engine running. Dual springs can take more abuse and a bit more lift, but they are not bullet proof by all means.

 

The 1218s and 1518s(I think thats the pt number) are beehive springs

 

I know they are not bullet proof, But surely my .551 lift will be fine against them.. What would you recommend scott?

Correct.