408 Big-Block Rebuild, Part 5 - 1967 Chevrolet Chevelle SS Photo Gallery
1. Because we’re running a flat tappet cam, we needed to run a high zinc content engine oil after our initial break-in. For maximum durability and protection, we went with AMSOIL’s Z-Rod 20W-50 synthetic oil. A high-zinc formulation to prevent wear on flat-tappet camshafts and other critical engine components. Z-Rod is made with a proprietary blend of rust and corrosion inhibitors for added protection for engines that see long periods of storage and inactivity.