Valve Spring Inner MGA, MGB to 1971

This is the Inner Spring Used on the Dual Valve Spring Set for MGA and MGB 1963 to 1971 (18G to 18GK Engines). Our valve spring are made in the UK with the correct pounds per inch and of a quality steel for long life. Don't skimp on your rebuild and take the chance of a broken valve spring that would ruin your engine rebuild Cross Reference 423-430, 1H723K, 12H176K