Forged Hi-Lift forged rockers on special rocker shaft for BMC A Series Engines as used in 1275 MG Midgets, Austin Healey Sprites through 1974 and on some Classic Minis 1959 through 2000. High quality assembly made in the UK. Please note that this ration is normally too high for smaller 948, 1098 and other mini engines less than 1275 unless race prepared by an experienced builder.