PAC Racing Valve Spring Shim Kit - 1.250" OD - 0.575" ID - Steel RS003C0113 Moroso Solid Core Sets are

Moroso Solid Core Sets are pre-terminated at the spark plug end and include enough wire

5/8 in Inlet

Paintable & repairable body components

making Aeromotive's latest addition true to its name

1982-1991 Pontiac Firebird CID 305 Naturally Aspirated GAS

PAC Racing Valve Spring Shim Kit - 1.250" OD - 0.575" ID - Steel RS003C0113 Moroso Solid Core Sets areProduct Description: Valve Spring Shim 0. 015 0. 020 0. 030 0. 050 in Thick 1. 250 in OD 0. 570 in ID Steel 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 racing events.