AFR Dual Valve Spring - 450 lb. - 1.080 in Coil Bind - 1.270 in OD - AFR Cylinder Heads 12-432-8 52 x 24 in

52 x 24 in

Available in ¼” increments

Tire Size/Rear Gear Ratio Change

Includes one carburetor ring

5% urea and 67

AFR Dual Valve Spring - 450 lb. - 1.080 in Coil Bind - 1.270 in OD - AFR Cylinder Heads 12-432-8 52 x 24 inProduct Description: Valve Spring Dual Spring 450 lb in Spring Rate 1. 080 in Coil Bind 1. 270 in OD AFR Cylinder Heads Replacement Set of 16 For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the