1.625 Dual Valve Springs (16) 2007-chevrolet-silverado-3500-hd-esi6334973 4:1 Gear Reduction - Natural

4:1 Gear Reduction - Natural - 164 Tooth Flywheel - 3/8 in Depth - Small Block Ford - Each

1 in Long - Aluminum - Black Anodized - NAG-1 - Mopar V6 - Chrysler 300 2005-12 / Dodge Challenger 2009-12 / Dodge Charger 2005-12 - Each

5 in OD - 10 in Length - 150 lb/in Spring Rate - Steel - Red Powder Coat - Each

Valve Cover - Slant-Edge - Tall - Baffled - Breather Hole - Recessed Chevrolet Bowtie Logo - Aluminum - Black Crinkle Powder Coat - Small Block Chevy - Pair

1.625 Dual Valve Springs (16) 2007-chevrolet-silverado-3500-hd-esi6334973 4:1 Gear Reduction - NaturalValve Spring 1200 Series Drag Race Dual Spring 629 lb in Spring Rate 1. 100 in Coil Bind 1. 625 in OD Set of 16