Which cc980 valve springs to get?

[rc1626]

Changing valve springs soon and want to put in comp 980's. Went to the Summit web site and it seems there are two different types. CCA-980-12's and CCA-980-16's. Now I know one set comes w/ 12 springs and the other 16 but there are other differences listed in the description of each. Any help would be appreciated. Thanks!



CCA-980-12's - 1.230 in. O.D., .876 in. I.D., 308 lb. spring rate, single, valve spring set

CCA-980-16's - Single spring, 1.230 in. outer diameter with damper. .888 in. inside diameter, 322 spring rate, valve springs

 

[TWISTER]

Sorry cant help ya but I got mine from Dennis Kirban Kirban performance a couple years ago and got the tool to change with the deal he had. Hope this helps a little. He only carrys the right ones

 

[Two Lane]

CCA-980-12's - 1.230 in. O.D., .876 in. I.D., 308 lb. spring rate, single, valve spring set

 

[1badTTA]

I thought the -12's were a set of 12 and the -16's were a set of 16 for a V-8. Wasn't aware there was a difference in the springs themselves.

 

[salvageV6]

A comp. cam 980 is a comp cam 980.

12 or 16 would be the quantity.

Someone prolly typed in the wrong info. regarding them.

The 12's will be enough to do the car.

Kirbans are Chevy springs with 100lb. force avg., about 18% too high for the stock cam spec.

Comp. cams. are 1-2% high on avg. with 84lb. avg.

Just my observations from testing them.

 

[rc1626]

Thanks for the info.
Rob