Air Flow Research AFR 1845 LS3 12-Degree Cylinder Heads Fully CNC Ported with 2.165 Inch Intake and 1.600 Inch Exhaust Valves

The Air Flow Research AFR 1845 LS3 12-Degree Cylinder Heads are engineered for high-performance applications on GM LS-Series engines. These fully CNC ported aluminum cylinder heads feature 2.165-inch intake valves and 1.600-inch exhaust valves, designed to optimize airflow and enhance engine power. The 260 cc intake runner volume and 69 cc combustion chamber contribute to improved combustion efficiency and increased horsepower. The heads are assembled with 1.270-inch springs and feature an angle plug design for increased spark plug access and better ignition performance. Manufactured specifically for LS3 engines, these heads are suitable for street and racing builds aiming for significant power gains and reliability.

Features:

• Material: Aluminum construction for lightweight strength and durability

• Valve Sizes: 2.165-inch intake and 1.600-inch exhaust valves for optimized airflow

• Chamber Size: 69 cc combustion chamber for efficient combustion

• Intake Runner Volume: 260 cc for improved airflow and power

• Spring Height: 1.270-inch springs designed for high-performance valve train support

• Design: 12-degree valve angle for enhanced airflow dynamics

• Compatibility: GM LS-Series LS3 engines

• Finish: Fully CNC ported for precise airflow optimization

• Assembly: Assembled cylinder heads ready for installation