Crower Valve Springs - 604 Crate Engine 68135-16

Crower Valve Springs - 1.440 68390X3-16Valve Spring - Dual Spring / Damper - 450 lb/in Spring Rate - 1.110 in Coil Bind - 1.440 in OD - Set of 16

Crower Valve Springs - 1.045 68195-16Valve Spring - Single Spring - 251 lb/in Spring Rate - 0.860 in Coil Bind - 1.045 in OD - Set of 16

Willys Carb 604 Crate Engine Carb Wcd50127Carburetor - 604 Crate - 4-Barrel - 750 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Chromate - Each

Crower Valve Springs - Dual 1.400 68405-16Valve Spring - Dual Spring / Damper - 382 lb/in Spring Rate - 0.980 in Coil Bind - 1.400 in OD - Set of 16

Crower Valve Springs - Dual 1.405 68404-16Valve Spring - Dual Spring / Damper - 338 lb/in Spring Rate - 0.950 in Coil Bind - 1.405 in OD - Set of 16

Crower Valve Springs - Dual 1.500 68340-16Valve Spring - Dual Spring / Damper - 452 lb/in Spring Rate - 1.080 in Coil Bind - 1.500 in OD - Set of 16

Chevrolet Performance 604 Beehive Valve Springs 16 19420455Valve Spring - Single Beehive Spring - 332 lb/in Spring Rate - 1.220 in Coil Bind - 1.320 in OD - GM LS-Series - Set of 16

Willys Carb 604 Crate Engine Total Perf Kit 604CrateCarburetor - GM604 Power Kit - 4-Barrel - 750 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Fasteners / Gaskets / Spacer /...