Application: Intake manifold coolant adapter is designed for Acura K20 K24 K Series Swap, providing a solution for installing the K20 type cap on the K24 head. Sturdy Construction: The intake manifold coolant adapter is made from high strength metal material, resistant to rust and wear, sturdy and durable. 1/8 NPT Port: The intake manifold coolant adapter plate features a 1/8 NPT port for replacing the commonly used coolant temperature sensor in vehicles. Installation: Tapping the head will require a 6.5mm drill bit (to finish the blind hole in the adapter), 5mm drill bit (to drill the head), and M6x1.0 tap. Tight Fit: The intake manifold coolant adapter can be installed using a spring loaded plate or by tapping the head, ensuring a secure fit and seal. Item Type: Coolant Adapter Plate Material: ABS + Metal The K24 Coolant Adapter provides a solution for installing the K20 type cap on the K24 head. The recirculation fitting on K24 is typically part of the cap, which is not present on the K20 cap. This adapter is compatible with all K24 heads, including K24Z series (R40) heads. It features a 1/8 NPT port for replacing the commonly used coolant temperature sensor in vehicles. Installation options include using a spring loaded plate or tapping the second hole on the head. The spring loaded plate applies constant pressure to secure the adapter, ensuring a tight fit and seal. Alternatively, the provided blind hole allows for easy threading of the second hole. Fitment: Compatible with Acura K20 K24 K Series Swap Package Includes: 1 x Coolant Adapter Plate, 2 x Screw