PAC Racing 1300 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD AC-100 Both manifolds accept standard restrictor

Both manifolds accept standard restrictor plates and carb adapters

Valve Covers: Ford Performance 302-137 Cast Aluminum Gray CrinkleFord Racing offers a variety of products for hard core racing and street vehicles

producing more torque capacity and motor efficiency

Valve stem

1957-1974 Dodge D300 Pickup

PAC Racing 1300 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD AC-100 Both manifolds accept standard restrictorProduct Description: Valve Spring 1300 Series Dual Spring 644 lb in Spring Rate 1. 150 in Coil Bind 1. 550 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