denscor

Has anyone used these springs before? Comp Cams 26925 Ultra Dual Valve Springs; Designed for GM LSr Camshafts, .650 Lift, 1.290" OD

XtraCajunSS

iTrader: (2)

I've used them since their initial release. They are a great spring. I've personally installed at least 30 sets. They are our preferred spring for LS3 applications. I use the 26926 on my more extreme applications.

Thanks,
Shane

david vericker

iTrader: (1)

I can't find the 26926 spring on the Comp Cams web sight. The only 926 spring that I found was for a Chrysler flat tappet cam. I run the 26921 springs and was interest in what Comp had to say about the 26926 springs.

XtraCajunSS

iTrader: (2)

I don't have a box here but if memory serves, they are rated as follows:

.675 max lift
approx 130# on the seat @1.835"
approx 470# open
1.100" coil bind

I'm going off of the last set I measured. I shimmed the set I used to 1.790" to get 150# on the seat (ETP LS7 w/LSL lobed cam...) rate should be about 500lb/in

We have them here:
http://www.thunderracing.com/catalog...&sid=316#P7505

Hope this helps...

Shane