61-238-5 - Camshaft, C61 264S-8. Chevrolet 194-250 c.i. 6 CYL. 1963-1984. Solid-Good for mini-stock with stock engine, when Solid lifters can be used. Hi-Tech Mechanical Flat Tappet Camshafts. All COMP Cams Camshafts are manufactured to the strictest tolerances. Rigorously tested and checked for quality.