PAC Racing 1200 Series Valve Spring Dual Spring 550 lb/in Spring Rate 1.100" Coil Bind - 1.550" OD 91929969 1977-1977 Buick Riviera

1977-1977 Buick Riviera

T56/T56 Magnum and 4L80/4L85 installations require the use of a Hooker 71222007HKR transmission crossmember

Standard Flow

(NOT compatible with Hydraulic Roller Camshafts) Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat

PAC Racing 1200 Series Valve Spring Dual Spring 550 lb/in Spring Rate 1.100" Coil Bind - 1.550" OD 91929969 1977-1977 Buick RivieraProduct Description: Valve Spring 1200 Series Dual Spring 550 lb in Spring Rate 1. 150 in Coil Bind 1. 550 in OD Circle Track Endurance 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