PAC Racing 1200 Series Ovate Beehive Spring - 313 lb/in Spring Rate - 1.140 in Coil Bind - 1.290 in OD - GM LS-Series - Set of 16 PAC-1218 H778C31M Since 1978

Since 1978

1955-1959 GMC FM340

Double-D hole design positions posts close together

Available in beautiful chrome plated

Homologation: Snell-FIA CMR-2016

PAC Racing 1200 Series Ovate Beehive Spring - 313 lb/in Spring Rate - 1.140 in Coil Bind - 1.290 in OD - GM LS-Series - Set of 16 PAC-1218 H778C31M Since 1978Product Description: Valve Spring 1200 Series Ovate Beehive Spring 313 lb in Spring Rate 1. 140 in Coil Bind 1. 290 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