PAC Racing Valve Spring Shim Kit - 1.250" OD - 0.575" ID - Steel Helmet Forced Air Hose Edelbrock does not recommend the

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PAC Racing Valve Spring Shim Kit - 1.250" OD - 0.575" ID - Steel Helmet Forced Air Hose Edelbrock does not recommend theProduct 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.