Swift Bump Spring - 4000 lb. BR4009 Built from scratch with all-new

Built from scratch with all-new components

The linkage block acts as a side rest for your foot and can be adjusted to match the best combination for your linkage

1968 Chevy II/Nova with console and Muncie (451) transmission

530" Valve Guide Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring

Swift Bump Spring - 4000 lb. BR4009 Built from scratch with all-newSwift 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