PAC Racing Steel C/M Spring Seats - 1.550 x .700 x .575 HS11PAFIA 550 in Rectangular Port

550 in Rectangular Port

Two-Ten Series 1957-1955Vehicle Applications: Chevrolet Bel Air 1957-1955

hesitation and rough shifting in worn transmissions and completely eliminates most seal leaks

The Holley 12-914 fuel pump supplies more pressure than a factory GM TBI injection is capable of supporting

PAC Racing Steel C/M Spring Seats - 1.550 x .700 x .575 HS11PAFIA 550 in Rectangular PortProduct Description: Valve Spring Locator Inside 0. 060 in Thick 1. 550 in OD 0. 575 in ID 0. 700 in Spring ID Chromoly 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