Description
This is a Set of Heavy Duty Uprated Dual Valve Spring Set for MGA and MGB 1963 to 1971 (18G to 18GK Engines). The kit includes eight inner springs and eight outer springs. Can be used on the later 1972 to 1980 MGBs if valve spring retainers are changed. Our valve spring are made in the UK and are meant to be installed with a height of 39mm. These are meant to be used with High Performance Camshafts that need an increased spring pressure to keep the valves seated at high RPMS. Do no use with stock camshaft or accelerated camshaft wear will occur. Cross Reference 423-455, TMG10707