PAC Racing 1300 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD NPT to NPT O-Ring Fittings RECOMMENDATIONS: Can be mixed with

RECOMMENDATIONS: Can be mixed with similar lubricants

810 in Spring ID

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1980-1985 Pontiac Grand Prix

PAC Racing 1300 Series Valve Spring Dual Spring 644 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD NPT to NPT O-Ring Fittings RECOMMENDATIONS: Can be mixed withProduct Description: Valve Spring 1300 Series Dual Spring 644 lb in Spring Rate 1. 150 in Coil Bind 1. 550 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