Those are B-body springs. They might be too long. Also they take a larger size bushing than A bodies. If you can even use them due to the length you’ll need b-body bushings and then a sleeve to run small diameter bolts for the A body hangers/shackles
Ontario! I also checked the listings that said they are B body springs but most catalogs say they are the same springs used in the A body 340 powered cars. Also, I checked the lengths and measurements to confirm they are A body sized.