Howards Racing Components Dual Valve Springs - 1.540 98637

Howards Racing Components Dual Valve Springs - 1.437 98441Valve Spring - Max Effort - Dual Spring - 375 lb/in Spring Rate - 1.050 in Coil Bind - 1.437 in OD - Set of 16

Howards Racing Components Dual Valve Springs - 1.557 98635Valve Spring - Max Effort - Dual Spring / Damper - 471 lb/in Spring Rate - 1.150 in Coil Bind - 1.557 in OD - Set of 16

Howards Racing Components Dual Valve Springs - 1.437 98442Valve Spring - Dual Spring - 283 lb/in Spring Rate - 1.025 in Coil Bind - 1.437 in OD - Set of 16

Howards Racing Components 1.550 Dual Valve Springs 98643Valve Spring - Dual Spring / Damper - 508 lb/in Spring Rate - 1.080 in Coil Bind - 1.550 in OD - Set of 16