PAC Racing RPM Series Valve Spring Dual Spring 425 lb/in Spring Rate 1.055" Coil Bind - 1.280" OD Head and Neck Restraint Padding 000 HP at the wheels

000 HP at the wheels and speeds of 200 mph

1988-1990 Chevrolet K3500All GM TH400 automatic transmissions

75 cc Chamber

938 in Long

When performing free-air calibration

PAC Racing RPM Series Valve Spring Dual Spring 425 lb/in Spring Rate 1.055" Coil Bind - 1.280" OD Head and Neck Restraint Padding 000 HP at the wheelsProduct Description: Valve Spring RPM Series Dual Spring 425 lb in Spring Rate 1. 055 in Coil Bind 1. 280 in OD GM LS Series 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