Manifold Makes manifold the highest filling point. For cooling problems where radiator is mounted low. Fits both right or left applications. Sender mount. Fits GM V8, 90° V6. Locates filler neck at highest point on cars with low-mount radiators to bleed off air. Unit can be flipped 180° for either right or left outlet location. Includes 1/2" NPT fitting for installing water temperature sending unit and two 1/4" NPT fittings for return lines on popular aftermarket cylinder heads. Made of 356-T6 cast aluminum; 3-1/4" high. Includes gaskets, bolts and washers, and standard size radiator cap filler neck. Radiator Cap A must have when racing! High pressure cap for radiators raises boiling point of water. Learn more about cooling systems, how to choose the proper pressure cap, and how they work by reading our tech article. Cooling System Principles. Themostat Speedway takes a quality Robertshaw 330-180 high flow 180° thermostat, then modifies it to function properly in high RPM, high flow applications. They feature a balanced sleeve design and are strongly recommended for any performance application. Fits most domestic applications. 2-1/8" diameter. High flow 180° thermostat. Balanced sleeve design. Recommended for any performance application. Fits most domestic applications. Learn more about the importance of the thermostat with cooling systems and how they work by reading our tech article, Cooling System Principles.
