ive been running double valve springs for a few months, and am thinking about upgrading to the comp cams 918 beehive springs, any negatives besides the small batch of defectives,(1 ive herd of)

and did you use titanium retainers?

This is with a CC305 cam Stock ported and polished heads@205cc, 7/16 th rocker studs. CC pro mags NSA 1.6 RR, chromoly pushrods, GM performance guideplates.

 

I use 918's in my LS1 with a .598 lift cam. So far so good and the motor sees 6800 rpm when I race. I use stock retainers, I would have used Ti if I was not broke.

 

Sweet, and thanks if they can handle that lift and rpm im definately getting them. im gonna pass on the ti retainers as well, from what ive heardmost peopleuse steel retainers with no problems.