Product Description Specifications Made from hardened steel, these locators use an inboard locating shoulder to center the seat and hold the spring in place. The 4680 seat's 1.300" OD works well with our 7228 and 7230 conical springs in LS applications. Category: Engine Components>Valve Springs, Retainers Core: N LTL: N MPN: 4680-16 Proposition 65: Y Special Order: Y