PAC Racing 1300 Series Valve Spring Dual Spring 436 lb/in Spring Rate 1.190" Coil Bind - 1.374" OD H76803FXXL This extreme precision tool is

This extreme precision tool is a must for any professional racer or engine builder

Virtual Switch Panel (replaces the need for physical switches) *2 switched ground outputs to be added to trigger an external relay*

The super tall crab cap is taller to fit special racing blocks such as the Allen Root or Rocket blocks

110 Orifice

2 Point Adjustable

PAC Racing 1300 Series Valve Spring Dual Spring 436 lb/in Spring Rate 1.190" Coil Bind - 1.374" OD H76803FXXL This extreme precision tool isProduct Description: Valve Spring 1300 Series Dual Spring 436 lb in Spring Rate 1. 190 in Coil Bind 1. 374 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