Isky Valve Spring Set 8005A; Performance Dual 135 lbs at 1.875 in., 1.53 in. OD

Isky Cams 8005A 1.530 inch Valve Spring Set of 16 Steel 400 lb/in

Isky 8005A 1.530in Valve Springs

Comp Cams 26929-16 1.553" Dual Valve Spring Set - 400 lb/in Rate (Set of 16)

Engine Valve Spring Kit ISKY 8005A

COMP Cams 26925-16 Dual Valve Springs for GM LS Engines – 400 lb/in Spring Rate

Isky 6105 Dual Valve Spring Set; 1.430 OD

Isky 235D Valve Spring, Single Spring / Damper, 350 lb/in Spring Rate, 1.150 in