Rocker Assemblies for the 1959 thru 2000 Mini Cylinder heads are available in standard ratio or 1.5 high performance. 1.5 ratio rockers assemblies are cast iron or aluminum with either roller tips only or full roller bearing assemblies. Ask the experts at MiniMania.com
The new generation of short period, high lift cams have been developed to give the best results in large bore engines when used in conjunction with 1.5 ratio, hi-lift rockers. For the small bore range, the stock 1.3 ratio is optimum. In certain instances ratios of 1.7 to 1 are of benefit - but is really only applicable to fully developed race engines.