Kong Performance LT4 High Flow Billet Water Manifold
The Kong Performance LT4 Billet Water Manifold is a direct-replacement upgrade designed to improve coolant flow to the intercoolers inside the LT4 supercharger. The inlet and outlet ports at the LT4 snout are precision-sized to match the enlarged, CNC-ported water passages found in all Kong CNC-ported superchargers, reducing restrictions and increasing overall coolant flow.
Increased intercooler water flow helps remove heat more effectively, keeping intake air temperatures lower. Cooler air increases air density, which allows the supercharger to push more oxygen into the engine. This improves overall Supercharger efficiency and helps the engine produce more horsepower while maintaining consistent performance, even during extended or aggressive driving.
The Kong billet manifold includes interchangeable ORB-style fittings for a true plug-and-play installation. Two fitting options are included. OEM 5/8" quick-disconnect and 12AN connections, providing flexibility for multiple coolant line routing configurations. Since it is a direct swap, installation takes just a few minutes!
SMG ordering and fitment notes
This Kong Performance catalog item is supplied for the applications described above. Verify the exact vehicle, engine, supercharger, bolt pattern, finish, pulley ratio, and supporting hardware before ordering. Contact SMG before purchase when the combination is unusual or when the product requires machining, calibration, or another Kong component.
Processing and shipping
Processing occurs before shipping. Kong products may be special-order or vendor-fulfilled and can require additional handling time before carrier pickup. Expedited shipping changes transit time after shipment and does not shorten manufacturing, machining, or order processing. Any product-specific lead time or availability note above takes priority.
Installation responsibility
Performance components should be installed and calibrated by a qualified professional. The purchaser is responsible for verifying compatibility, safe operating limits, emissions legality, and suitability for the intended vehicle and use.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.