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Dual Valve Springs - (16) GM LS Valve Spring - RPM Series - Dual Spring - 425 lb/in Spring Rate - 1.055 in Coil Bind - 1.280 in OD - GM LS-Series - Set of 16

1.105 Valve Springs - Ovate Beehive (16) Valve Spring - 1200 Series - Ovate Beehive Spring - 324 lb/in Spring Rate - 0.900 in Coil Bind - 1.105 in OD - Ford Modular - Set of 16

1.550 Dual Valve Springs - (16) Valve Spring - 1200 Series - Dual Spring - 644 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Drag Race - Set of 16

1.550 Dual Valve Springs - (16) Valve Spring - 1200 Series - Dual Spring - 663 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Drag Race - Set of 16

1.539 Dual Valve Springs - (16) Valve Spring - 1200 Series - Dual Spring / Damper - 500 lb/in Spring Rate - 1.130 in Coil Bind - 1.539 in OD - Circle Track Endurance - Set of 16

1.625 Dual Valve Springs - (16) Valve Spring - 1200 Series - Drag Race Series - Dual Spring - 629 lb/in Spring Rate - 1.100 in Coil Bind - 1.625 in OD - Drag Race - Set of 16

1.083 Valve Springs (16) Beehive Ovate Valve Spring - RPM Series - Ovate Beehive Spring - 291 lb/in Spring Rate - 1.089 in Coil Bind - 1.083 in OD - Set of 16

1.083 Valve Springs (16) Beehive Ovate Valve Spring - RPM Series - Ovate Beehive Spring - 291 lb/in Spring Rate - 0.952 in Coil Bind - 1.083 in OD - Set of 16

1.210 Beehive Valve Springs 1200 Series Valve Spring - 1200 Series - Ovate Beehive Spring - 358 lb/in Spring Rate - 1.160 in Coil Bind - 1.21 in OD - Set of 16

Spark Plugs 4pk 276s Spark Plug - Shorty - 14 mm Thread - 0.460 in Reach - Tapered Seat - Non-Resistor - Set of 4

Spark Plugs 4pk Spark Plug - Shorty - 14 mm Thread - 0.750 in Reach - Gasket Seat - Resistor - Set of 4

Spark Plugs 4pk Spark Plug - Shorty - 14 mm Thread - 0.750 in Reach - Gasket Seat - Resistor - Set of 4