Swift Bulletproof Coil-Over Spring - 3" ID x 16" - 150 lb. - Bullet Proof HYSXLG11M61 250" long Hi-Tech 3/8" diameter

250" long Hi-Tech 3/8" diameter pushrods handle the requirements of today's all-out race engines

Fits 1957 to 1974 Corvette

More timing can be run (without detonation) than with stock distributors and after market curve kits

ED in oil Injection Technology guarantees that the bearing assembly receives constant

Simpson's largest 14' parachute canopy is all Kevlar chute and shroud line construction

Swift Bulletproof Coil-Over Spring - 3" ID x 16" - 150 lb. - Bullet Proof HYSXLG11M61 250" long Hi-Tech 3/8" diameterINCREASE 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