Stant racing radiator caps are a standard SAE ñAî size, and does include upper gasket so they are for use on open and closed cooling systems. These caps are an unique line of high and low-pressure caps designed for the high performance vehicle.

Features

    -High pressure caps are made for use on race cars only. They should not be used on passenger cars.
    -High pressure caps are available for open and closed cooling systems.
    -High pressure caps are available in pressures ranging form 19 to 32 pounds.
    -Low pressure caps are constructed form higher quality materials and operate within closer tolerances than standard caps.
    -Low pressure caps are available in either 13 or 16 pound caps.
    -Low pressure caps also feature the Stant racing design on the cap.