K-Tuned B/D Series Lower Thermostat Housing w/16AN and Hose End Fitting

Applications: 88-01 B-Series engines 88-00 D-Series engines (Except D16Z6). Note: * Does NOT fit D16Z6 * Redesigned to work with ALL B-series transmissions * May Not fit with some scattershields * Comes with both 16AN and Hose End Fitting The K-Tuned B/D Thermostat Housing was developed to offer B and D Series engine owners a few more options with their cooling system setups. The CNC machined billet housing is a direct replacement for the oem unit and mounts in the same factory position, with the rad outlet following the original and slightly upward outlet angle. The number one feature of this design is the threaded water outlet port on the body, which allows use of the standard 1.25" rad hose fitting or 12AN / 16AN fittings if desired. This unique threaded port design eliminates the need to weld bungs to the old and dirty factory cast aluminum pieces. The rad hose fitting thread size is 16OR (1-5/16-12 SAE) and is properly sealed in an o-ring port to ensure leak-free operation. The