Swift Bump Stop Spring - 2.125 in Free Length - 2.000 in OD - 600 lb/in Spring Rate - Copper Powder Coat 1005 and are bolt-on replacements for

and are bolt-on replacements for most conventional 23° heads

All you need to do is drop it in the engine

The Driver

you can smack it around a bit without denting it

425 lb/in Rate

Swift Bump Stop Spring - 2.125 in Free Length - 2.000 in OD - 600 lb/in Spring Rate - Copper Powder Coat 1005 and are bolt-on replacements forSwift 2" O. D. bump springs offer the highest measurable shock stroke in the industry and, unlike inefficient rubber and foam bump stops, they are resistant to fatigue and heat. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs