The springs that came with my l92 heads had a new set of Crane .650 dual springs that were assembled at a machine shop. Ive been told that the crane springs dont have enough seat pressure for the heavier l92 valves. Hoping some one has something to add to this.

 

anyone?

 

Can you get the springs specs?

Same motor as in yo sig?

These are beehive right?

 

they are not beehive yes same motor and cam in my sig http://cranecams.com/?show=browsePar...mber=144832-16

 

I wouldnt runem.You need bout 135-140#'s @ the seat for your setup.You would to shim the **** out of them to get that seat pressure putting you to close to coil bind.If you had Ls3 valves on the other hand i think it would work.

 

Man i just looked again they are conservitive with their rating.I would shim them .035 off of 1.800 & see what seat pressure is.

 

Went ahead and bought the Lunati .660 springs with 153# seat pressure for $219 shipped off Ebay.