Front coil springs

[sixt9x33rs]

I have a set of relatively new front springs and I don't know what they were built for? A small block or big block? Is there any way to tell?

Thanks

Lawrence

[bertfam]

Are they GM or aftermarket? If GM, is the tag still on them?

Ed

[sixt9x33rs]

Ed, I am guessing aftermarket. There are no tags.

[jvb6648]

I replaced the springs that were in my small block when I bought it. Pretty sure those were big block springs. That's 40 years ago. They had a free height of 16.5 inches. The small block springs I just replaced them with are 14.98 inches. I know spring dia. matters but hope this helps.

Jim

[Mark]

look at the very ends of the spring coils, if they are MOOG springs there will be a 4 digit number stamped on the coil, usually very small and hard to see but they are there, maybe 2" from the end of the coil.

[firstgenaddict]

Like this these numbers are on the original Z28 springs... btw Lawrence I have a set of front springs with the last number of 25 they are listed for BB conv with about 200# extra weight.

[sixt9x33rs]

Thanks guys I will check for the numbers. James I may want to buy those springs from you if you would like to sell them.