Stock style 1.25:1 ratio rockers for use with stock rocker shafts or bolt up rocker shafts. Can be used on stock rocker shafts but recommended for bolt up shafts. For use with 8mm adjusting screws and swivel feet are recommended.

One of the easiest ways to add horse power to an engine are Ratio rockers. They increase valve lift without affecting duration

The rocker arm kit can be fitted to performance engines with camshafts designed to run 1.25:1 ratio rockers.

It can be fitted to stock engines but it is important to check the valve geometry, rocker cover clearance and pushrod tube clearance when fitting these.