PAC Racing 1300 Series Valve Spring Dual Spring 663 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD R040002XL The addition of a lumbar

The addition of a lumbar stretch-panel in the lower back

High quality black Cerakote finish

It has a 120mm opening for maximum flow and is capable of over 1

one 3/8" NPT inlet and is adjustable from 5 to 12 psi

Height: Front 3

PAC Racing 1300 Series Valve Spring Dual Spring 663 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD R040002XL The addition of a lumbarProduct Description: Valve Spring 1300 Series Dual Spring Damper 663 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