Pac Racing Springs Spring Seats .510 ID (16) For RPM Duals PACPAC-S136

Valve Spring Locator - Inside - 0.030 in Thick - 1.270 in OD - 0.510 in ID - 0.680 in Spring ID - Chromoly - Set of 16

Engines and Components, Camshafts and Valvetrain, Valve Spring Locators by PAC RACING SPRINGS