The Supertech single valve spring is specified with diameters of 30mm and 21.80mm, a 25.50mm center bore, 80 lb seat pressure at 40.4mm and 186 lb at 12.00mm lift, and is supplied individually. This spring is intended for applications that require those precise dimensions and load ratings for correct valve motion control. Select it when matching exact spring geometry during rebuilds or repairs.
Supertech Single Valve Spring 30 / 21.80mm / 80lb at 40.4mm / 186Lbs at 12.00 / CB 25.50mm - Single