Bilster

I am building a Cobra kit that utilizes C4 suspension. The whole C4 front suspension cradle, for instance, bolts right up to the frame. I have the opportunity to purchase a complete C4 suspension cradle and all attached parts from a 1990 ZR1. Dimensionally speaking, is there any difference between the C4 ZR1 suspension and any other 1990 C4 suspension? Another way of looking at it would be could you take a 1990 ZR1 cradle and suspension and bolt it under your standard C4 Corvette?

WVZR-1

You'll have no problems with the suspension install so long as it's what your kit calls for! It's the same stuff!

I'm guessing you're using coil-overs so you've no concern for the spring rate difference ZR-1/LT5 vs. a conventional build C4. There's no "plus" to the build but I expect you could hang a "ZR-1 badge" on it's "tail" and "boast" ZR-1 suspension on a build record!

BrianCunningham

Great place to start

http://www.corvetteactioncenter.com/...usp_chart.html

Bilster

WVZR-1,
That's the information I was looking for. The frame has mounting holes for the C4 suspension cradle. I'm not actually using coil overs, though I might in the future. The springs that come with the kit replace the stock C4 springs. They are a special run of fiberglass spring made by Vette Brakes especially for this Everett-Morrison kit.

Brian,
I've seen that chart. Thanks. I was needing information on the dimensions of the assembly, not so much spring rates. I was afraid that the ZR1 suspension cradle was different to accomodate the much larger LT5 motor.