Swift Coil-Over Spring - Barrel Type - 2.5" ID x 10" Tall - 300 lb. 356903 1978-1987 Pontiac Grand Prix CID

1978-1987 Pontiac Grand Prix CID 231 Naturally Aspirated GAS

1969-1972 Chevrolet Kingswood

396ci - 427ci

28600 lb Breaking Strength

Swift Coil-Over Spring - Barrel Type - 2.5" ID x 10" Tall - 300 lb. 356903 1978-1987 Pontiac Grand Prix CIDINCREASE TRACTION, LESS UN SPRUNG MASS, MORE STROKE, INCREASED HANDLING. THE ONLY THING YOU WILL BE LOSING IS TRACK TIME. 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 superior engineering has provided the next generation of