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I'm in the market for a set of shocks for the Big Block (#550 front springs/ 360 composite rear). I was considering the Bilsteins, but wanted opinions of the RSCI Shocks ---> http://www.madvet.com/shop?frame=1.190.1689
The RCSI shocks offer more tuning options (9 positions) whereas the Bilsteins are not adjustable. The Rcsi are $200 and the Bilsteins are $320.
I have a set on my LT-1 right now, so far so good. I have run Koni, Bilstein, and Gabriel adjustable "E" shocks (were some of the best from the 1970's-80's era.) I think they work pretty well! The front shocks are best installed by removing the mounting shaft to allow you to push the entire shock into the spring above the control arm and then re-installing the adjustment ****. You need to be sure and lubricate the shaft well before removing and to keep the adjustment **** in the correct position while it is removed from the shock! I like the fact that there is no "gas cell" pre-load on the shocks and they seem to work well at the autocrosses and drag races so far (stiff at the drags and about #7 position for autocrossing.) I havent had the time for an extended street drive yet but the lower dampning rates should have a good ride for softly sprung cars. Besides the PITA of front shock installation, I think you cant beat these shocks.