JEGS 555-51121 1 5/8 in. Core Plug Block Heater

• Installs easily into a core plug hole in the block and comes complete with a 4 1/2 ft. grounded power cord
• Not just for cold and icy mornings but ideal for race cars too
• Preheat your engines coolant and oil preventing wear and tear on vital engine components by radiating heat to surrounding components, such as engine bearings, valvetrain, intake manifold, transmission, and starter, which will allow for easier cranking and engine starting
• Brings the engine to operating temperature quicker by cutting warm-up time in half, saving fuel and engine run time
• We recommend using one heater per side on v8s for quicker heating results