1.638 Dia. H-11 Dual Valve Springs- .760 ID.

Valve Spring - Dual Spring - 637.5 lb/in Spring Rate - 1.100 in Coil Bind - 1.546 in OD - Set of 16

1.638 H11 Dual Valve Springs

Valve Spring - Dual Spring / Damper - 637 lb/in Spring Rate - 1.100 in Coil Bind - 1.638 in OD - Set of 16

1.638 in H11 Dual Valve Spring

Valve Spring - Dual Spring / Damper - 637 lb/in Spring Rate - 1.100 in Coil Bind - 1.638 in OD - Each

1.638in H-11 Dual Valve Spring

Valve Spring - Dual Spring / Damper - 677 lb/in Spring Rate - 1.090 in Coil Bind - 1.638 in OD - Each

1.640 O.D. Spring Shim Kit 16 Ea .015-.030-.060

Valve Spring Shim Kit - 0.015 / 0.030 / 0.060 in Thick - 1.640 in OD - Steel - Kit

1.640 O.D. Spring Shims .635 I.D. .015 Thickness

Valve Spring Shim - 0.015 in Thick - 1.640 in OD - Steel - Set of 16

1.640 O.D. Spring Shims .635 I.D. .030 Thickness

Valve Spring Shim - 0.030 in Thick - 1.640 in OD - Steel - Set of 16

1.640 O.D. Spring Shims .650 I.D. .060 Thickness

Valve Spring Shim - 0.060 in Thick - 1.640 in OD - Steel - Set of 16

1.645in Triple Valve Spring

Valve Spring - Race Extreme - Triple Spring - 687 lb/in Spring Rate - 1.130 in Coil Bind - 1.660 in OD - Each

1.650in Dual Valve Springs

Valve Spring - Dual Spring / Damper - 640 lb/in Spring Rate - 1.125 in Coil Bind - 1.650 in OD - Set of 16

1.660 Triple Valve Spring

Valve Spring - Triple Spring - 681 lb/in Spring Rate - 1.145 in Coil Bind - 1.660 in OD - Each

1.660in Valve Springs

Valve Spring - Dual Spring - 580 lb/in Spring Rate - 1.130 in Coil Bind - 1.660 in OD - Set of 16