Engines and Components

1.620 Dual Valve Springs - Polished

Valve Spring - NexTek - Dual Spring - 500 lb/in Spring Rate - 1.200 in Coil Bind - 1.620 in OD - Polished - Set of 16

1.610 NexTek Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 546 lb/in Spring Rate - 1.220 in Coil Bind - 1.610 in OD - Set of 16

1.580 Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 535 lb/in Spring Rate - 1.170 in Coil Bind - 1.580 in OD - Set of 16

1.560 Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 533 lb/in Spring Rate - 1.200 in Coil Bind - 1.560 in OD - Polished - Set of 16

1.530 NexTek Dual Valve Springs

Valve Spring - NexTek - Dual Spring / Damper - 435 lb/in Spring Rate - 1.170 in Coil Bind - 1.530 in OD - Set of 16

1.311 NexTek Dual Valve Springs

Valve Spring - NexTek - Conical - Single Spring - 353 lb/in Spring Rate - 1.100 in Coil Bind - 1.076 in / 1.311 in OD - Polished - Set of 16

1.640 NexTek Valve Springs

Valve Spring - NexTek - Dual Spring - 604 lb/in Spring Rate - 1.150 in Coil Bind - 1.640 in OD - Set of 16

1.640 NexTek Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 647 lb/in Spring Rate - 1.070 in Coil Bind - 1.640 in OD - Polished - Set of 16

1.640 Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 647 lb/in Spring Rate - 1.070 in Coil Bind - 1.640 in OD - Set of 16

1.640 Dual Valve Spring

Valve Spring - NexTek - Dual Spring - 647 lb/in Spring Rate - 1.070 in Coil Bind - 1.640 in OD - Each

1.500 NexTek Dual Valve Springs

Valve Spring - NexTek - Dual Spring - 800 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

GM LS Billet Crankshaft 4.000 Stroke w/58-Tooth

Crankshaft - 4.000 in Stroke - Internal Balance - 58X Reluctor Wheel - Billet Steel - 1-Piece - GM LS-Series - Each