Front Coil Cover Conversion Kit (Double Adjustable)

QA1 conical springs are designed so that the lower end sets on the coil-over shock and the upper end sets in the original spring bucket in the frame. This allows for the use of a longer and lighter spring for more stored energy, offering increased weight transfer. Greater durability is also achieved by locating the spring pressure in the frame and not on a single stud. The threaded aluminum body allows ride height adjustment and boasts an easy bolt-in installation. The system includes Promo Star coil-over shocks, specially designed conical springs and all mounting hardware.
Vehicle Fitment1955-57 Bel-Air Small Block
1955-57 210 Small Block
1955-57 150 Small Block
1958-70 Impala Small Block
1958-70 Caprice Small Block
1958-70 Bel-Air Small Block
1958-70 Del-Ray Small Block
1958-70 Biscayne Small Block