M311 LS3 Assembled Cylinder Head

The Frankenstein Engine Dynamics 113004-RBR is an assembled M311 LS3 cylinder head designed for enhanced performance in GM LS-Series engines. This aluminum cylinder head boasts 2.165-inch intake valves and 1.600-inch exhaust valves, paired with a 273 cc intake runner volume and a 71 cc combustion chamber volume. As a high-performance component, the M311 cylinder head is a key upgrade for enthusiasts looking to maximize the potential of their LS3 engine. Its construction and port design are indicative of a focus on street performance applications, suggesting a balance between raw power and reliable operation for daily driving or track use. This cylinder head is sold individually (each). Please note that availability may vary, and this item is currently out of stock. For optimal results and to ensure proper function, it is recommended to consult with a performance engine builder regarding specific installation requirements and tuning adjustments for your application.