Swift Bump Spring - 1000 lb. Dominator Racing Products 563 in Square Port

563 in Square Port

No provisions for exhaust heated chokes or EGR

Disclaimer: ORACLE Lighting offers these parts professionally painted to order

and 72cc combustion chambers

Swift Bump Spring - 1000 lb. Dominator Racing Products 563 in Square PortSwift 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