91ZLS1

I have a 222/222 560 114LSA, it currently has dual springs, don't know which kind. I broke an outer spring and need to replace them. I don't know what to go with. I have LS6 stage 2 heads. Will LS6 springs be ok? For a 99 SS.
thanks
Kyle

MUSTANGEATER

iTrader: (10)

I'd get a set of comp 918's.

Lithium

iTrader: (47)

comp 918's will be the best choice, thats what Iam getting with my tr224 cam.

SouthFL.02.SS

Comp 918's.

91ZLS1

Thanks guys.

cyphur

iTrader: (10)

Tech

iTrader: (1)

Get PRC duals. You will change cams again and why not just do the valvesprings once?

MUSTANGEATER

iTrader: (10)

Comp 918's are sufficent and there are many educated members running them on XE-R (harsh) lobes with over .600 lift. Install height and spring pressure are a biggy.

Red 01SS

iTrader: (2)

either of the 2 mentioned will work. But if you are going to get a bigger cam you may as well get the duals again

PREDATOR-Z

918's are more than enough and have much better harmonics than heavy duals, not to mention a lot lighter.
I run 918's with a 224, .581 XE-R lobes.

davered00ss

iTrader: (4)

Comp 918's.

CamTom12

iTrader: (1)

I've got 918's on mine.

M6HuggerSS

whats the diff. between 918 and 921's.....

i have the comp duals, with the blue strip.. thats the 921's right?

Tech

iTrader: (1)

I have lots of confidence in Comp. Their customer service is awesome.

Seems like most people put a cam in their car and wish they'd gone bigger. If he pulls that and goes for a more radical grind, the PRC/Comp 921 are added insurance.

There are many more educated members running Comp 921s or PRC springs.

SStheBest

iTrader: (2)

921's support a bigger lift

casey02ws6

iTrader: (2)

The 921s are larger in diameter - the heads have to be modified for them to fit if I remember correctly!

bigdsz

iTrader: (1)

Comp 921's are 1.30". Comp 978 and 977 1.46", spring pockets must be enlarged. Brian at Comp will point you in the right direction.