LGM Racing and Development Shaft Rocker Arm Systems feature a fully CNC machined billet body over the more common extrusion body design for increased strength and fatigue resistance. Available in ratios from 1.50 to 1.70, and intake offsets from .100" to .550", to work with most 23º SBC and 20º SBF cylinder heads available from AFR, Brodix, Dart, Edelbrock, Profiler and Trickflow.
