Average spring rate is 391 pounds per inch;Outer spring outside diameter is 1.460;Springs are selectively magnaflux inspected and checked for tension;Inside diameter of the inner spring is 0.803 and outer spring is 1.075;Backed by Crane's 1 year Warranty Policy under normal use

• Crane Cams 99893-16 1.460 Dual Valve Spring, (Set of 16)

Crane Cams 99893-16 1.460 Dual Valve Spring, (Set of 16)Crane Cams