Isky Cams RAD-9000 Precision Tool Room Dual Valve Springs w/ Damper - (Set of 16) - Outer: 1.570" O.D., 1.145 I.D. - Inner: 1.040" O.D., .740" I.D. HASZ6SM No choke for unobstructed airflow

No choke for unobstructed airflow

SPECS: Base Style: Dropped 1 inch Brand: Holley

Ford Applications With External Slave Cylinder

Pilot Bearings

Isky Cams RAD-9000 Precision Tool Room Dual Valve Springs w/ Damper - (Set of 16) - Outer: 1.570" O.D., 1.145 I.D. - Inner: 1.040" O.D., .740" I.D. HASZ6SM No choke for unobstructed airflowIsky RAD 9000 Precision Tool Room Valve Spring taken one step further. Springs have undergone Radial Densification (RAD), which further modifies the springs' physical properties. Designed for endurance oval track racing, RAD 9000 springs are sold in sets of 16. Isky RAD 9000 Precision Tool Room Dual Valve Springs w Damper Outer: 1. 570" O. D. 1. 145 I. D. Inner: 1. 040" O. D. . 740" I. D. Seat Pressure 250 @ 2. 030" Open Pressure: 625 @ 1. 300" Rate