We maybe able to help you
I need a little more info from you on the spring your looking for. What is it you will be doing with the car? Here is the reason we have many springs to choose from. Let start with.
Composite springs:
300 lb. Composite Monospring Replaces a 9-leaf stock spring and rides very soft.
330 lb. Composite Monospring: Can be used on any 1963-1982 small block car. Not as harsh as a Gymkana 7-leaf stock steel spring. Rides and handles great. Ideal when combined with GT front coil springs.
360 lb. Composite Monospring: The Street/Slalom spring. Recommended for all big block cars and those wanting greatly enhanced handling. This high performance spring gives better ride than a 7-leaf with far superior handling. Ideal spring to use with SS front coils (550 lbs./inch) or the Front Traverse Leaf Spring Kit.
420 lb. Composite Monospring: Increased stiffness. Racers and drag racing. Direct substitute for Daytona Steel Spring (400 lbs./inch). With the Composite Rear Spring Kit you must use 8" long spring bolts.
Now please also note
When using a fiberglass rear spring, you must change out the shocks in the car to specially valved shock designed specifically for fiberglass springs. Depending on the spring rate you are interested in, determines what shock goes best with your purchase of the fiberglass spring. Up to 330# springs should use the KYB GR-2 Shocks and 330# spring and up should use a Bilstein Sport Shock. QA1 Adjustable shocks will work well with any spring rate. QA1's are almost a must for drag racers.
Then you have the
Hyperco Composite Springs:
Hyperco 330# Rear Spring
Our Hyperco 330# spring is great for Big Block owners and performance minded drivers. The rate is 10% stiffer than the OE 7 leaf steel Spring.
Hyperco Easy Ride Rear Spring
Our most popular spring bar none. The EZ Ride spring has the same rate as a stock 9 leaf spring - 200#'s. This is also the same exact spring rate that came out of the 81-82 Corvettes with a Composite Spring. The reason for the low spring rate is because of the springs high arch. Other composite springs need to have a higher spring rate because the arch is very low. This spring is an excellent choice for everyday cruiser. Owners with mid-years (63-67 Vette) love them. These also work great for the C3 (68-82) cars. Our 330 Spring is best for Big Block owners and is 10% stiffer than the OE 7 leaf steel spring.
I hope this helps in making a choice of spring for your car. We can't help you on the top but i am sure someone can.
If you would PM or call us toll free we can get you your Corvette Action Center Pricing.
Thanks
