I used Hotchkis 2" drop BBC springs on my bird with iron heads because my research showed the Pontiac engine weighs around 650lbs, a BBC is 685(Mark IV) and a typical SBC is 575, so it's between the two, and I wanted the firmer rate. Now that they are on, the ride is nice, but they aren't quite low enough for me. I have 2" drop DSE leafs in the back and it has a fairly level stance with just a slight rake. I switched to aluminum heads and am adding A/C, so they'll probably end up about the same. My shocks are Koni's, which I personally prefer. Every Bilstein I have used has been harsh though I haven't tried the Hotchkis valved version. Even with these BBC springs, my ride is very compliant and it's never harsh. I have Global West Del-a-lum bushings in stock lca's, and same in Speedtech uca's. I also have the Hotchkis 1-1/8" sway bar. I have solid GW bushings and subframe connectors.
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1969 Firebird, Black w/Parchment Arizen interior, 383 Pontiac Stroker (350/428 crank), TKO600, Moser 12 bolt, 18" TTII's, Hotchkis, GW, DSE, Speed Tech, Vintage A/C, etc.
Last edited by Josh69; 04-13-2010 at 09:54 AM.
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