Description The OG billet K series water neck flange is used as an OEM replacement but is better known for use in many of my popular fabricated products for the K20A, K20A2, K20A3, K20Z1, and K24A1 cylinder heads. Beautifully machined billet 6061-T6 flange which incorporates the largest passage possible within the OEM gasket’s footprint, a -8 ORB water bypass port, and a machined o-ring groove for the OEM gasket. You can choose to add a sensor port directly to the top of the flange (near the logo) or the side of the flange (under the outlet). The hardware kit includes two M6 socket head bolts, a water bypass hose fitting, a clamp, and a Genuine Honda gasket. You can choose to add an outlet fitting (shown below). 1.25″ Hose Fitting -16 Male Flare
