PAC Racing RPM Series Valve Spring Dual Spring 409 lb/in Spring Rate 1.000" Coil Bind - 1.290" OD RS004C1512 4-Bolt Mains

4-Bolt Mains

lightweight aluminum to reduce alternator bearing loads

Fuel injected engines: E85 up to 2380 FWHP - naturally aspirated up to 1820 FWHP - forced air induction

Extreme Door Kit

And we haven’t stopped

PAC Racing RPM Series Valve Spring Dual Spring 409 lb/in Spring Rate 1.000" Coil Bind - 1.290" OD RS004C1512 4-Bolt MainsProduct Description: Valve Spring RPM Series Dual Spring 409 lb in Spring Rate 1. 000 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 technical