The Tillotson 196R cylinder head, the JT-207, was designed here by EC Carburetors for the AKRA, NKA, and WKA box stock classes. The cylinder head has proven to be the best in all 196cc box stock classes and the best head for classes that allow porting. Here, you can find all the lightweight and legal valvetrain components for the Tillotson 196R engine.
