PAC Racing 1200 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD Leak Down Tester primary tubes

primary tubes

Customized to fit trucks and SUVsVehicle Applications: 1997-1998 Ford F-150 3 Door SuperCab Pickup

That's right - no need to worry about a PC and complicated software

Engine and Performance Recommendations for this cylinder head: Ultimate 23" Head

Circle Track Officials can choose regulated parameters such as max RPM rev limit

PAC Racing 1200 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD Leak Down Tester primary tubesProduct Description: Valve Spring 1200 Series Dual Spring 644 lb in Spring Rate 1. 150 in Coil Bind 1. 550 in OD Drag Race 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