PAC Racing 1300 Series Valve Spring Dual Spring 813 lb/in Spring Rate 0.985" Coil Bind - 1.300" OD 31013P These spring rubbers are made

These spring rubbers are made for racing from a special Polyurethane that out lasts rubber 4 to 1

Locks / Chromoly Retainer

Thick Front Seal

They are required for Edelbrock Ford Victor

PAC Racing 1300 Series Valve Spring Dual Spring 813 lb/in Spring Rate 0.985" Coil Bind - 1.300" OD 31013P These spring rubbers are madeProduct Description: Valve Spring 1300 Series Dual Spring 813 lb in Spring Rate 0. 985 in Coil Bind 1. 300 in OD Set of 16 PAC Racing Springs is part of the Race Winning Brands Family. With more than 100 years of spring manufacturing experience. We understand the demands of racing and provide a commitment to all of our customers to provide the best service possible. We continue to expand products and offer expanded onsite technical services at various