PAC Racing 1.274 Dual Valve Springs - (16) GM LS 15-NEC-N-A stock LS3 or all supercharged

stock LS3 or all supercharged LS/Vortec engine swaps requiring maximum ground clearance

1975-1976 Mercury Montego

17-21 F250 Cab and Chassis

painted or anodized

PAC Racing 1.274 Dual Valve Springs - (16) GM LS 15-NEC-N-A stock LS3 or all superchargedProduct Description: Valve Spring RPM Series Dual Spring 550 lb in Spring Rate 1. 045 in Coil Bind 1. 274 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