Swift Bump Spring - 1000 lb. H77715FXXL Use Head Bolt Kits for

Use Head Bolt Kits for easy installation

Street Scoop Dual 2 x 4-Barrel Carburetor "Enderle" Style

Big Block Series

Aluminum Case

These race proven parts produce the ultimate spark output by allowing plug gaps to be opened up to

Swift Bump Spring - 1000 lb. H77715FXXL Use Head Bolt Kits 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