You can still use LOH Blocks on Coburn TWO-PIN System machines. Adapts Rocker Arms from "TWO PIN" blocks to "LOH" Blocks having the ability to switch Blocks without using any tools.
1. Separate Pin Holder assembly from the Rocker Arm.
2. Install Flat Bracket between Rocker Arm and Pin holder
For TWO-PIN Blocks:
• Open the two flat sides and remove and round bar with cone.
For LOH Blocks:
• Re-insert the round bar with cone.