sharpshooter

iTrader: (10)

How much lift can I run with these springs?I've heard many different #'s.

OnyxSilveradoSS

iTrader: (4)

the ls6 stock cam is .551/.555
I would not go much higher than that.

RandomHero

iTrader: (24)

There are plenty of guys running those springs with cams that have .580 or less. Hell there are even quite a few who are running cams with .600 lift and still running those springs.

To be safe I would say .570 or less.

06sierra5.3

iTrader: (7)

i have brand new 918's for sale if you need them

mcfarlnd

iTrader: (15)

im gonna be running a gt1 cam with ls6 springs.

sharpshooter

iTrader: (10)

Working out a deal right now to pick up a Vinci Trucker cam 216 224 .551 .551 to run with my D1SC and TT3000 Yank.I see I should be fine with the LS6 springs.

2 tone 02

iTrader: (8)

Whats the gm part# for the Ls6 springs?

EDIT: Is 12499224 the correct part number? Thanks

jakebdb56

iTrader: (24)

The yellow LS6 springs are rated for a higher lift than the blue ones. IIRC, the blue LS6 springs are good to .550 and the yellows are to .580 per Lingenfelter Performance.

hirdlej

iTrader: (31)

Also keep in mind that the yellow springs aren't as resistant to "lofting" as the 918's or stiffer. Meaning when you're running a camshaft with more aggressive to really aggressive ramps the yellow LS6 springs may be more prone to lofting or allowing the roller tipped lifter to leave the camshaft for a moment and come back down (like a dirtbike going off a jump). I have not studied the yellow springs enough to see what they're capable of but will hope to report back sometime this spring. Perhaps with a short enough installed height you could get enough pressure out of the spring to make it act "bigger" or stiffer.

sharpshooter

iTrader: (10)

A 216 224 shouldn't cause lofting?