LS1 Valve springs??

[Pewter2K1]

Was told somewhere that LS1 valve springs could be used when buying new ones.. This true? cause I got a price of a whopping 25 bucks for new ones from GM... Will drastically reduce my cost of the new parts I have on tap... they are good for over .55 lift...

[Seppo Kaitainen]

Yes stock shaped LS1 valve springs work. What GM springs did you get new for 25 bucks?

According to Tbyrne:
stock ls1 are good to .525
01 LS6 .540
02 LS6 .600
SLP .610

[Dominic]

This is excellent information, I appreciate it!

[Pewter2K1]

My buddy is Parts Manager at the local dealership... get his discount, plus these are at cost parts, not marked up...

[pgriffith]

So what cam are you going to be running with these springs? I wouldnt recomend going all the way up to .525 lift.

[camaro_zach]

yes but what is the spring rate on them, my cam has fast ramps and low lift, so i need strong springs, not ones that can support a high lift. does anyone know what the spring rate for the ls1 springs are?

[Seppo Kaitainen]

LS1 valve spring
install 1.800" / 75 lbs
max lift 0.525" / 230 lbs

2001 LS6 valve spring
install 1.800" / 90 lbs
max lift 0.540" / 250 lbs

2002 LS6 valve spring
install 1.800" / 90 lbs
max lift 0.600" / 300 lbs

SLP valve spring
install 1.800" / 90 lbs
max lift 0.610" / 320 lbs

The spec's from tbyrne's webpage. http://www.tbyrnemotorsports.com/ls1/ls1valvetrain.html