Manley Chevrolet 409intake Valve Kit - 2.250in Head Dia. 5.105in O/A Length, 0.3715in Stem

The Manley Performance Race Master intake valve is a high-performance component designed for 409 Chevrolet engines. Constructed from NK-842 Stainless Steel, it offers exceptional durability. The valve features a chrome stem and hard tip for increased longevity and wear resistance. It also has swirl-polished under-head areas and fully machined combustion faces to enhance airflow and combustion efficiency.

Key specifications include a 2.25-inch head diameter, a 0.3715-inch stem diameter, and a stock installed height. The overall length is 5.105 inches, with a tip length of 0.225 inches. It also features a 15°x1/2" underhead angle/radius, a 0.065-inch margin, a 0.08-inch seat width, and a 7° dish top of the head. This listing includes 8 valves.