Cyclone Holden V8 253-308 Dual-plane Intake Manifold, Street

This is a great all round street manifold. It is a direct replacement for the stock intake manifold on Holden Red/Blue/Black 253-308 engines. Includes an adaptor plate to permit use of certain square bore carburettors. Calflow intake manifolds are cast from steel moulds, not sand. These permanent steel moulds provide a tighter grain casting, thereby reducing porosity as well as eliminating core shifting.