Isky Cams 1.560 Valve Springs Earmuff Speakers Non Polished Turn Down Tip

Non Polished Turn Down Tip

Dual 10 AN Female Outlets

1979-1980 GMC K2500

Strong torque thru low and mid-range

Isky Cams 1.560 Valve Springs Earmuff Speakers Non Polished Turn Down TipProduct Description: Valve Spring Tool Room Dual Spring Damper 500 lb in Spring Rate 1. 175 in Coil Bind 1. 560 in OD Set of 16 As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve