PAC Racing RPM Series Valve Spring Dual Spring 392 lb/in Spring Rate 1.000" Coil Bind - 1.304" OD H774001XXL MSD has also designed a

MSD has also designed a cap and rotor specifically for the 12LT series

WOO and ASA champions rely on FEL-PRO engineering for flawless performance under extreme conditions

Hedman Hedders Specialty/Engine Swap Header 69490 Tube Size 1 5/8 in

Available in Black in sizes Small - 3X-Large (refer to sizing chart)

PAC Racing RPM Series Valve Spring Dual Spring 392 lb/in Spring Rate 1.000" Coil Bind - 1.304" OD H774001XXL MSD has also designed aProduct Description: Valve Spring RPM Series Dual Spring 392 lb in Spring Rate 1. 000 in Coil Bind 1. 304 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