Lunati Valve Springs.

[JMo60]

i can try to get a part number.. ill have to wait till the parts guy is back at the dealership

[Fiero11]

It is hard to compare these various valve springs. Can someone put a table together so that we can compare apples to apples for LS1, LS2, LS4, LS6, LS? Here is an example:

Crane 99838 Dual Springs

Seat pressure at installed height: 110# @ 1.688
Open pressure and height: 320# @ 1.208
Coil bind: .950
Average spring rate: 438#/in

[geoffinbc]

LS 1 2 4 are the same
LS6 is more
LS7 even more with a different taller install height

[SappySE107]

I thought the LS2 and 6 were the same spring. gmpd doesn't list the old LS6 part number any more (green springs). They sell the yellow one which I had tested.

[El_Diablo]

the green ones had less pressure IIRC

[1988GTU]

Which LS? springs can handle 6XXX RPM (Head PnP, Mild Cam)?
What retainers would you get?

This is for a Gen2 60\/6.

[geoffinbc]

http://members.shaw.ca/betterthanyoutoo/lsvspring.htm

Thats info right from GM

[geoffinbc]

Which LS? springs can handle 6XXX RPM (Head PnP, Mild Cam)?
What retainers would you get?

This is for a Gen2 60\/6.

Check your cam card.

[1988GTU]

I would, but I can't find it. Also, I plan to goto a different cam (more lope).

[geoffinbc]

Then post you specs and we can help you out.

[1988GTU]

Alrighty then, when I get the cam in the mail I'll try my best of getting it up on here.