CHIWS6

iTrader: (31)

I had a misfire in cylinder 1, so i replaced injectors and coil but it still didn't cure the misfire. I took the valve covers off and found out that 1 of the double springs was broken. The springs have roughly 200 miles but i was wondering why did it break so soon? Is this a common issue on these springs? I will be calling Texas Speed & Performance on monday morning to let them know about the situation.

MODS:
Prc 265 heads (unmilled)
pfadt headers/b&b fusion exhaust
TSP LS7R cam
FAST 102 setup

Dyno Junkie

Did you heat cycle them initially?

BLWN1

iTrader: (6)

Just ordered some from them, hope it's not common??

NorthDadeZ06

Broke 3 springs in a week and a half span. 1 by 1 . Yes 3. Worried. Live in SoFla. Maybe because of the heat. Shrugg

NorthDadeZ06

Texas Speed and Custom have accommodated me every time by sending me replacements, however if another one goes I will ask them to replace the whole set. Hopefully it's just a bad batch. My pushrods are dead on, everything balance d. Lsx r7 cam. Ported stock ls7 heads, new valves. The works. all machine work done by Texas Speed

SStheBest

iTrader: (2)

hmmm i had EHT .675 springs in mine and never had an issue out of them outa the 4 years of driving the car. I did have a lifter go but springs were fine. Car sees alot of miles too.

KCS

iTrader: (20)

Where did it break, in the middle or closer to the top/bottom? Might want to double check the set up (installed height, coilbind, etc).

racer8088

Yeah the OEM LS7 heads have a higher installed height if you just install the same parts on them as a regular LSx deal like a 243 or TFS235 etc. so may not be as much pressure as you think. I've had to run -.050 locks from PAC and some shims before to get everything back right as compared to a normal style LSx head.